1670974487 has 32 divisors (see below), whose sum is σ = 2083737600. Its totient is φ = 1312537824.

The previous prime is 1670974483. The next prime is 1670974499. The reversal of 1670974487 is 7844790761.

It is not a de Polignac number, because 1670974487 - 2² = 1670974483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670974483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2752538 + ... + 2753144.

It is an arithmetic number, because the mean of its divisors is an integer number (65116800).

Almost surely, 2^1670974487 is an apocalyptic number.

1670974487 is a deficient number, since it is larger than the sum of its proper divisors (412763113).

1670974487 is an equidigital number, since it uses as much as digits as its factorization.

1670974487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 53.

The square root of 1670974487 is about 40877.5548070087. The cubic root of 1670974487 is about 1186.6517198264.

The spelling of 1670974487 in words is "one billion, six hundred seventy million, nine hundred seventy-four thousand, four hundred eighty-seven".