69664461 has 4 divisors (see below), whose sum is σ = 92885952. Its totient is φ = 46442972.

The previous prime is 69664457. The next prime is 69664477. The reversal of 69664461 is 16446696.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69664461 - 2² = 69664457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69664421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11610741 + ... + 11610746.

It is an arithmetic number, because the mean of its divisors is an integer number (23221488).

Almost surely, 2^69664461 is an apocalyptic number.

It is an amenable number.

69664461 is a deficient number, since it is larger than the sum of its proper divisors (23221491).

69664461 is a wasteful number, since it uses less digits than its factorization.

69664461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23221490.

The product of its digits is 186624, while the sum is 42.

The square root of 69664461 is about 8346.5238872240. The cubic root of 69664461 is about 411.4689740863.

It can be divided in two parts, 69664 and 461, that added together give a triangular number (70125 = T₃₇₄).

The spelling of 69664461 in words is "sixty-nine million, six hundred sixty-four thousand, four hundred sixty-one".