939697920 has 432 divisors, whose sum is σ = 3816164352. Its totient is φ = 209018880.

The previous prime is 939697919. The next prime is 939697921. The reversal of 939697920 is 29796939.

It is an interprime number because it is at equal distance from previous prime (939697919) and next prime (939697921).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939697921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3467385 + ... + 3467655.

Almost surely, 2^939697920 is an apocalyptic number.

939697920 is a gapful number since it is divisible by the number (90) 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 939697920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908082176).

939697920 is an abundant number, since it is smaller than the sum of its proper divisors (2876466432).

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

939697920 is a wasteful number, since it uses less digits than its factorization.

939697920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The square root of 939697920 is about 30654.4926560529. The cubic root of 939697920 is about 979.4811636532.

The spelling of 939697920 in words is "nine hundred thirty-nine million, six hundred ninety-seven thousand, nine hundred twenty".