670439559 has 16 divisors (see below), whose sum is σ = 914745312. Its totient is φ = 436620288.

The previous prime is 670439551. The next prime is 670439579. The reversal of 670439559 is 955934076.

It is not a de Polignac number, because 670439559 - 2³ = 670439551 is a prime.

It is a super-2 number, since 2×670439559² = 898978404544228962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670439551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27999 + ... + 46095.

It is an arithmetic number, because the mean of its divisors is an integer number (57171582).

Almost surely, 2^670439559 is an apocalyptic number.

670439559 is a deficient number, since it is larger than the sum of its proper divisors (244305753).

670439559 is a wasteful number, since it uses less digits than its factorization.

670439559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18386.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The square root of 670439559 is about 25892.8476417717. The cubic root of 670439559 is about 875.2253282003.

The spelling of 670439559 in words is "six hundred seventy million, four hundred thirty-nine thousand, five hundred fifty-nine".