70513994 has 8 divisors (see below), whose sum is σ = 111992868. Its totient is φ = 33183040.

The previous prime is 70513981. The next prime is 70514029. The reversal of 70513994 is 49931507.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70341769 + 172225 = 8387^2 + 415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036937 + ... + 1037004.

Almost surely, 2^70513994 is an apocalyptic number.

70513994 is a deficient number, since it is larger than the sum of its proper divisors (41478874).

70513994 is a wasteful number, since it uses less digits than its factorization.

70513994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073960.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 70513994 is about 8397.2611010972. The cubic root of 70513994 is about 413.1347929303.

The spelling of 70513994 in words is "seventy million, five hundred thirteen thousand, nine hundred ninety-four".