1670393913 has 8 divisors (see below), whose sum is σ = 2227442976. Its totient is φ = 1113470400.

The previous prime is 1670393909. The next prime is 1670393917. The reversal of 1670393913 is 3193930761.

It is an interprime number because it is at equal distance from previous prime (1670393909) and next prime (1670393917).

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

It is not a de Polignac number, because 1670393913 - 2² = 1670393909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1670393917) 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, 6033 + ... + 58113.

It is an arithmetic number, because the mean of its divisors is an integer number (278430372).

Almost surely, 2^1670393913 is an apocalyptic number.

It is an amenable number.

1670393913 is a deficient number, since it is larger than the sum of its proper divisors (557049063).

1670393913 is a wasteful number, since it uses less digits than its factorization.

1670393913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62775.

The product of its (nonzero) digits is 91854, while the sum is 42.

The square root of 1670393913 is about 40870.4528112914. The cubic root of 1670393913 is about 1186.5142713004.

The spelling of 1670393913 in words is "one billion, six hundred seventy million, three hundred ninety-three thousand, nine hundred thirteen".