164894497 has 8 divisors (see below), whose sum is σ = 169092000. Its totient is φ = 160705440.

The previous prime is 164894491. The next prime is 164894507. The reversal of 164894497 is 794498461.

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

It is a cyclic number.

It is not a de Polignac number, because 164894497 - 2³ = 164894489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164894491) 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, 60118 + ... + 62800.

It is an arithmetic number, because the mean of its divisors is an integer number (21136500).

Almost surely, 2^164894497 is an apocalyptic number.

It is an amenable number.

164894497 is a deficient number, since it is larger than the sum of its proper divisors (4197503).

164894497 is a wasteful number, since it uses less digits than its factorization.

164894497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223.

The product of its digits is 1741824, while the sum is 52.

The square root of 164894497 is about 12841.1252232816. The cubic root of 164894497 is about 548.3637285919.

The spelling of 164894497 in words is "one hundred sixty-four million, eight hundred ninety-four thousand, four hundred ninety-seven".