70774731 has 12 divisors (see below), whose sum is σ = 102478480. Its totient is φ = 47068560.

The previous prime is 70774709. The next prime is 70774771. The reversal of 70774731 is 13747707.

It is not a de Polignac number, because 70774731 - 2¹⁷ = 70643659 is a prime.

It is a super-2 number, since 2×70774731² = 10018125096244722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70774771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5551 + ... + 13128.

Almost surely, 2^70774731 is an apocalyptic number.

70774731 is a deficient number, since it is larger than the sum of its proper divisors (31703749).

70774731 is a wasteful number, since it uses less digits than its factorization.

70774731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19106 (or 19103 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 36.

The square root of 70774731 is about 8412.7718975377. The cubic root of 70774731 is about 413.6433776915.

The spelling of 70774731 in words is "seventy million, seven hundred seventy-four thousand, seven hundred thirty-one".