670872087 has 6 divisors (see below), whose sum is σ = 969037472. Its totient is φ = 447248052.

The previous prime is 670872077. The next prime is 670872089. The reversal of 670872087 is 780278076.

It is not a de Polignac number, because 670872087 - 2⁷ = 670871959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670872089) 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, 37270663 + ... + 37270680.

Almost surely, 2^670872087 is an apocalyptic number.

670872087 is a deficient number, since it is larger than the sum of its proper divisors (298165385).

670872087 is a wasteful number, since it uses less digits than its factorization.

670872087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74541349 (or 74541346 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 670872087 is about 25901.1985630009. The cubic root of 670872087 is about 875.4135023003.

The spelling of 670872087 in words is "six hundred seventy million, eight hundred seventy-two thousand, eighty-seven".