1670090397 has 8 divisors (see below), whose sum is σ = 2227016160. Its totient is φ = 1113279120.

The previous prime is 1670090371. The next prime is 1670090399. The reversal of 1670090397 is 7930900761.

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

It is not a de Polignac number, because 1670090397 - 2⁶ = 1670090333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670090399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14854 + ... + 59672.

It is an arithmetic number, because the mean of its divisors is an integer number (278377020).

Almost surely, 2^1670090397 is an apocalyptic number.

It is an amenable number.

1670090397 is a deficient number, since it is larger than the sum of its proper divisors (556925763).

1670090397 is a wasteful number, since it uses less digits than its factorization.

1670090397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57243.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 1670090397 is about 40866.7394955849. The cubic root of 1670090397 is about 1186.4424024482.

The spelling of 1670090397 in words is "one billion, six hundred seventy million, ninety thousand, three hundred ninety-seven".