70937986 has 12 divisors (see below), whose sum is σ = 123779718. Its totient is φ = 30401952.

The previous prime is 70937983. The next prime is 70937987. The reversal of 70937986 is 68973907.

It can be written as a sum of positive squares in only one way, i.e., 62900761 + 8037225 = 7931^2 + 2835^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (70937981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361831 + ... + 362026.

Almost surely, 2^70937986 is an apocalyptic number.

70937986 is a deficient number, since it is larger than the sum of its proper divisors (52841732).

70937986 is a wasteful number, since it uses less digits than its factorization.

70937986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723873 (or 723866 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 70937986 is about 8422.4691154079. The cubic root of 70937986 is about 413.9611817634.

The spelling of 70937986 in words is "seventy million, nine hundred thirty-seven thousand, nine hundred eighty-six".