70975620 has 72 divisors (see below), whose sum is σ = 221132184. Its totient is φ = 18413568.

The previous prime is 70975607. The next prime is 70975649. The reversal of 70975620 is 2657907.

70975620 is a `hidden beast` number, since 7 + 0 + 97 + 562 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5171076 + 65804544 = 2274^2 + 8112^2 .

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

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, 1332 + ... + 11988.

Almost surely, 2^70975620 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 70975620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110566092).

70975620 is an abundant number, since it is smaller than the sum of its proper divisors (150156564).

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

70975620 is a wasteful number, since it uses less digits than its factorization.

70975620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10709 (or 10704 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 70975620 is about 8424.7029621228. The cubic root of 70975620 is about 414.0343736775.

The spelling of 70975620 in words is "seventy million, nine hundred seventy-five thousand, six hundred twenty".