670290983 has 2 divisors, whose sum is σ = 670290984. Its totient is φ = 670290982.

The previous prime is 670290961. The next prime is 670290991. The reversal of 670290983 is 389092076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670290983 - 2¹² = 670286887 is a prime.

It is a super-2 number, since 2×670290983² = 898580003782212578, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670290913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335145491 + 335145492.

It is an arithmetic number, because the mean of its divisors is an integer number (335145492).

Almost surely, 2^670290983 is an apocalyptic number.

670290983 is a deficient number, since it is larger than the sum of its proper divisors (1).

670290983 is an equidigital number, since it uses as much as digits as its factorization.

670290983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 670290983 is about 25889.9784279555. The cubic root of 670290983 is about 875.1606705769.

The spelling of 670290983 in words is "six hundred seventy million, two hundred ninety thousand, nine hundred eighty-three".