70662647 has 16 divisors (see below), whose sum is σ = 83220480. Its totient is φ = 59320800.

The previous prime is 70662623. The next prime is 70662677. The reversal of 70662647 is 74626607.

It is a happy number.

It is not a de Polignac number, because 70662647 - 2⁸ = 70662391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70662647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70662607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2522 + ... + 12152.

It is an arithmetic number, because the mean of its divisors is an integer number (5201280).

Almost surely, 2^70662647 is an apocalyptic number.

70662647 is a deficient number, since it is larger than the sum of its proper divisors (12557833).

70662647 is a wasteful number, since it uses less digits than its factorization.

70662647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9694.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 70662647 is about 8406.1077199855. The cubic root of 70662647 is about 413.4249037638.

The spelling of 70662647 in words is "seventy million, six hundred sixty-two thousand, six hundred forty-seven".