70513990 has 8 divisors (see below), whose sum is σ = 126925200. Its totient is φ = 28205592.

The previous prime is 70513981. The next prime is 70514029. The reversal of 70513990 is 9931507.

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

It is a congruent 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, 3525690 + ... + 3525709.

It is an arithmetic number, because the mean of its divisors is an integer number (15865650).

Almost surely, 2^70513990 is an apocalyptic number.

70513990 is a deficient number, since it is larger than the sum of its proper divisors (56411210).

70513990 is a wasteful number, since it uses less digits than its factorization.

70513990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051406.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 70513990 is about 8397.2608629243. The cubic root of 70513990 is about 413.1347851184.

The spelling of 70513990 in words is "seventy million, five hundred thirteen thousand, nine hundred ninety".