69390736 has 80 divisors (see below), whose sum is σ = 155347200. Its totient is φ = 29804544.

The previous prime is 69390721. The next prime is 69390743. The reversal of 69390736 is 63709396.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 69390692 and 69390701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149641 + ... + 150103.

It is an arithmetic number, because the mean of its divisors is an integer number (1941840).

Almost surely, 2^69390736 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 69390736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77673600).

69390736 is an abundant number, since it is smaller than the sum of its proper divisors (85956464).

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

69390736 is a wasteful number, since it uses less digits than its factorization.

69390736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 69390736 is about 8330.1102033527. The cubic root of 69390736 is about 410.9293532608.

The spelling of 69390736 in words is "sixty-nine million, three hundred ninety thousand, seven hundred thirty-six".