70632720 has 60 divisors (see below), whose sum is σ = 237210636. Its totient is φ = 18835200.

The previous prime is 70632713. The next prime is 70632743. The reversal of 70632720 is 2723607.

70632720 is a `hidden beast` number, since 7 + 0 + 632 + 7 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13660416 + 56972304 = 3696^2 + 7548^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×70632720² = 9977962269196800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48331 + ... + 49770.

Almost surely, 2^70632720 is an apocalyptic number.

It is an amenable number.

70632720 is an abundant number, since it is smaller than the sum of its proper divisors (166577916).

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

70632720 is a wasteful number, since it uses less digits than its factorization.

70632720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98120 (or 98111 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 70632720 is about 8404.3274567332. The cubic root of 70632720 is about 413.3665310369.

The spelling of 70632720 in words is "seventy million, six hundred thirty-two thousand, seven hundred twenty".