164857707 has 36 divisors (see below), whose sum is σ = 284915640. Its totient is φ = 93937536.

The previous prime is 164857703. The next prime is 164857729. The reversal of 164857707 is 707758461.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 164857707 - 2² = 164857703 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (164857703) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 466843 + ... + 467195.

Almost surely, 2^164857707 is an apocalyptic number.

164857707 is a deficient number, since it is larger than the sum of its proper divisors (120057933).

164857707 is an frugal number, since it uses more digits than its factorization.

164857707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 164857707 is about 12839.6926365081. The cubic root of 164857707 is about 548.3229433170.

The spelling of 164857707 in words is "one hundred sixty-four million, eight hundred fifty-seven thousand, seven hundred seven".