70939512 has 96 divisors (see below), whose sum is σ = 224995680. Its totient is φ = 19768320.

The previous prime is 70939507. The next prime is 70939529. The reversal of 70939512 is 21593907.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18948 + ... + 22380.

It is an arithmetic number, because the mean of its divisors is an integer number (2343705).

Almost surely, 2^70939512 is an apocalyptic number.

70939512 is a gapful number since it is divisible by the number (72) 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 70939512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112497840).

70939512 is an abundant number, since it is smaller than the sum of its proper divisors (154056168).

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

70939512 is a wasteful number, since it uses less digits than its factorization.

70939512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 70939512 is about 8422.5597059326. The cubic root of 70939512 is about 413.9641500848.

The spelling of 70939512 in words is "seventy million, nine hundred thirty-nine thousand, five hundred twelve".