70820974 has 12 divisors (see below), whose sum is σ = 123575544. Its totient is φ = 30351804.

The previous prime is 70820969. The next prime is 70820977. The reversal of 70820974 is 47902807.

It is a happy number.

It is a super-2 number, since 2×70820974² = 10031220716617352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70820977) 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, 361234 + ... + 361429.

It is an arithmetic number, because the mean of its divisors is an integer number (10297962).

Almost surely, 2^70820974 is an apocalyptic number.

70820974 is a deficient number, since it is larger than the sum of its proper divisors (52754570).

70820974 is a wasteful number, since it uses less digits than its factorization.

70820974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722679 (or 722672 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 70820974 is about 8415.5198294580. The cubic root of 70820974 is about 413.7334472496.

The spelling of 70820974 in words is "seventy million, eight hundred twenty thousand, nine hundred seventy-four".