70684938 has 12 divisors (see below), whose sum is σ = 153150738. Its totient is φ = 23561640.

The previous prime is 70684937. The next prime is 70684961. The reversal of 70684938 is 83948607.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70610409 + 74529 = 8403^2 + 273^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70684893 and 70684902.

It is not an unprimeable number, because it can be changed into a prime (70684931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1963453 + ... + 1963488.

Almost surely, 2^70684938 is an apocalyptic number.

70684938 is an abundant number, since it is smaller than the sum of its proper divisors (82465800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70684938 is a wasteful number, since it uses less digits than its factorization.

70684938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926949 (or 3926946 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 70684938 is about 8407.4334966148. The cubic root of 70684938 is about 413.4683717347.

The spelling of 70684938 in words is "seventy million, six hundred eighty-four thousand, nine hundred thirty-eight".