69664062 has 64 divisors (see below), whose sum is σ = 160683264. Its totient is φ = 19944960.

The previous prime is 69664039. The next prime is 69664069. The reversal of 69664062 is 26046696.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 69664062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69664069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141637 + ... + 142127.

It is an arithmetic number, because the mean of its divisors is an integer number (2510676).

Almost surely, 2^69664062 is an apocalyptic number.

It is a pronic number, being equal to 8346×8347.

It is a practical number, because each smaller number is the sum of distinct divisors of 69664062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80341632).

69664062 is an abundant number, since it is smaller than the sum of its proper divisors (91019202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69664062 is a wasteful number, since it uses less digits than its factorization.

69664062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 69664062 is about 8346.4999850237. The cubic root of 69664062 is about 411.4681885283.

The spelling of 69664062 in words is "sixty-nine million, six hundred sixty-four thousand, sixty-two".