70726978 has 16 divisors (see below), whose sum is σ = 126518400. Its totient is φ = 28993536.

The previous prime is 70726933. The next prime is 70726991. The reversal of 70726978 is 87962707.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109503 + ... + 110146.

It is an arithmetic number, because the mean of its divisors is an integer number (7907400).

Almost surely, 2^70726978 is an apocalyptic number.

70726978 is a deficient number, since it is larger than the sum of its proper divisors (55791422).

70726978 is a wasteful number, since it uses less digits than its factorization.

70726978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219681.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 70726978 is about 8409.9332934334. The cubic root of 70726978 is about 413.5503258536.

The spelling of 70726978 in words is "seventy million, seven hundred twenty-six thousand, nine hundred seventy-eight".