1670377087 has 8 divisors (see below), whose sum is σ = 1689083280. Its totient is φ = 1651713600.

The previous prime is 1670377073. The next prime is 1670377117. The reversal of 1670377087 is 7807730761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1670377087 - 2⁷ = 1670376959 is a prime.

It is a super-2 number, since 2×1670377087² = 5580319225549211138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670377487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71488 + ... + 91930.

It is an arithmetic number, because the mean of its divisors is an integer number (211135410).

Almost surely, 2^1670377087 is an apocalyptic number.

1670377087 is a deficient number, since it is larger than the sum of its proper divisors (18706193).

1670377087 is a wasteful number, since it uses less digits than its factorization.

1670377087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21353.

The product of its (nonzero) digits is 345744, while the sum is 46.

The square root of 1670377087 is about 40870.2469652436. The cubic root of 1670377087 is about 1186.5102873387.

The spelling of 1670377087 in words is "one billion, six hundred seventy million, three hundred seventy-seven thousand, eighty-seven".