70747887 has 32 divisors (see below), whose sum is σ = 114117120. Its totient is φ = 38085120.

The previous prime is 70747871. The next prime is 70747933. The reversal of 70747887 is 78874707.

It is not a de Polignac number, because 70747887 - 2⁴ = 70747871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70747847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92587 + ... + 93347.

It is an arithmetic number, because the mean of its divisors is an integer number (3566160).

Almost surely, 2^70747887 is an apocalyptic number.

70747887 is a deficient number, since it is larger than the sum of its proper divisors (43369233).

70747887 is a wasteful number, since it uses less digits than its factorization.

70747887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 614656, while the sum is 48.

The square root of 70747887 is about 8411.1763148801. The cubic root of 70747887 is about 413.5910744339.

The spelling of 70747887 in words is "seventy million, seven hundred forty-seven thousand, eight hundred eighty-seven".