70638946 has 16 divisors (see below), whose sum is σ = 121230144. Its totient is φ = 30240144.

The previous prime is 70638929. The next prime is 70638973. The reversal of 70638946 is 64983607.

It is a happy number.

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, 13476 + ... + 17968.

It is an arithmetic number, because the mean of its divisors is an integer number (7576884).

Almost surely, 2^70638946 is an apocalyptic number.

70638946 is a deficient number, since it is larger than the sum of its proper divisors (50591198).

70638946 is a wasteful number, since it uses less digits than its factorization.

70638946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 70638946 is about 8404.6978529867. The cubic root of 70638946 is about 413.3786762316.

The spelling of 70638946 in words is "seventy million, six hundred thirty-eight thousand, nine hundred forty-six".