70247764 has 12 divisors (see below), whose sum is σ = 123902464. Its totient is φ = 34847064.

The previous prime is 70247761. The next prime is 70247777. The reversal of 70247764 is 46774207.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70247761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68634 + ... + 69649.

Almost surely, 2^70247764 is an apocalyptic number.

It is an amenable number.

70247764 is a deficient number, since it is larger than the sum of its proper divisors (53654700).

70247764 is a wasteful number, since it uses less digits than its factorization.

70247764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138414 (or 138412 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 70247764 is about 8381.3939174817. The cubic root of 70247764 is about 412.6141984400.

The spelling of 70247764 in words is "seventy million, two hundred forty-seven thousand, seven hundred sixty-four".