69964536 has 64 divisors (see below), whose sum is σ = 186796800. Its totient is φ = 21772800.

The previous prime is 69964523. The next prime is 69964547. The reversal of 69964536 is 63546996.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31296 + ... + 33456.

It is an arithmetic number, because the mean of its divisors is an integer number (2918700).

Almost surely, 2^69964536 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 69964536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93398400).

69964536 is an abundant number, since it is smaller than the sum of its proper divisors (116832264).

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

69964536 is a wasteful number, since it uses less digits than its factorization.

69964536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260 (or 2256 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 48.

The square root of 69964536 is about 8364.4806174681. The cubic root of 69964536 is about 412.0589195279.

It can be divided in two parts, 69964 and 536, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 69964536 in words is "sixty-nine million, nine hundred sixty-four thousand, five hundred thirty-six".