670696980 has 48 divisors (see below), whose sum is σ = 1913393664. Its totient is φ = 175477120.

The previous prime is 670696973. The next prime is 670696981. The reversal of 670696980 is 89696076.

It is a happy number.

It is a super-2 number, since 2×670696980² = 899668877962240800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670696981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102276 + ... + 108635.

It is an arithmetic number, because the mean of its divisors is an integer number (39862368).

Almost surely, 2^670696980 is an apocalyptic number.

670696980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670696980 is an abundant number, since it is smaller than the sum of its proper divisors (1242696684).

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

670696980 is a wasteful number, since it uses less digits than its factorization.

670696980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210976 (or 210974 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 670696980 is about 25897.8180548092. The cubic root of 670696980 is about 875.3373306156.

The spelling of 670696980 in words is "six hundred seventy million, six hundred ninety-six thousand, nine hundred eighty".