70663672 has 8 divisors (see below), whose sum is σ = 132494400. Its totient is φ = 35331832.

The previous prime is 70663657. The next prime is 70663687. The reversal of 70663672 is 27636607.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70663657) and next prime (70663687).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4416472 + ... + 4416487.

It is an arithmetic number, because the mean of its divisors is an integer number (16561800).

Almost surely, 2^70663672 is an apocalyptic number.

It is an amenable number.

70663672 is a deficient number, since it is larger than the sum of its proper divisors (61830728).

70663672 is a wasteful number, since it uses less digits than its factorization.

70663672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8832965 (or 8832961 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 70663672 is about 8406.1686873391. The cubic root of 70663672 is about 413.4269027382.

The spelling of 70663672 in words is "seventy million, six hundred sixty-three thousand, six hundred seventy-two".