70647073 has 12 divisors (see below), whose sum is σ = 86507760. Its totient is φ = 57366792.

The previous prime is 70647067. The next prime is 70647077. The reversal of 70647073 is 37074607.

It is a happy number.

It is not a de Polignac number, because 70647073 - 2⁵ = 70647041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70647077) 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, 37011 + ... + 38872.

It is an arithmetic number, because the mean of its divisors is an integer number (7208980).

Almost surely, 2^70647073 is an apocalyptic number.

It is an amenable number.

70647073 is a deficient number, since it is larger than the sum of its proper divisors (15860687).

70647073 is a wasteful number, since it uses less digits than its factorization.

70647073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75916 (or 75909 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 70647073 is about 8405.1813186867. The cubic root of 70647073 is about 413.3945286750.

The spelling of 70647073 in words is "seventy million, six hundred forty-seven thousand, seventy-three".