39696900 has 72 divisors (see below), whose sum is σ = 115971744. Its totient is φ = 10483200.

The previous prime is 39696883. The next prime is 39696901. The reversal of 39696900 is 969693.

It is a super-2 number, since 2×39696900² = 3151687739220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39696901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33315 + ... + 34485.

Almost surely, 2^39696900 is an apocalyptic number.

39696900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39696900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57985872).

39696900 is an abundant number, since it is smaller than the sum of its proper divisors (76274844).

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

39696900 is a wasteful number, since it uses less digits than its factorization.

39696900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 39696900 is about 6300.5475952492. The cubic root of 39696900 is about 341.1291753820.

The spelling of 39696900 in words is "thirty-nine million, six hundred ninety-six thousand, nine hundred".