69890964 has 96 divisors (see below), whose sum is σ = 193522560. Its totient is φ = 19468800.

The previous prime is 69890939. The next prime is 69890969. The reversal of 69890964 is 46909896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69890969) 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, 289884 + ... + 290124.

It is an arithmetic number, because the mean of its divisors is an integer number (2015860).

Almost surely, 2^69890964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69890964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96761280).

69890964 is an abundant number, since it is smaller than the sum of its proper divisors (123631596).

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

69890964 is a wasteful number, since it uses less digits than its factorization.

69890964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 69890964 is about 8360.0815785493. The cubic root of 69890964 is about 411.9144337967.

The spelling of 69890964 in words is "sixty-nine million, eight hundred ninety thousand, nine hundred sixty-four".