70972824 has 64 divisors (see below), whose sum is σ = 202335840. Its totient is φ = 20551680.

The previous prime is 70972817. The next prime is 70972849. The reversal of 70972824 is 42827907.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 1387 + ... + 11994.

Almost surely, 2^70972824 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 70972824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101167920).

70972824 is an abundant number, since it is smaller than the sum of its proper divisors (131363016).

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

70972824 is a wasteful number, since it uses less digits than its factorization.

70972824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13420 (or 13416 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 70972824 is about 8424.5370199198. The cubic root of 70972824 is about 414.0289368091.

The spelling of 70972824 in words is "seventy million, nine hundred seventy-two thousand, eight hundred twenty-four".