455661879 has 4 divisors (see below), whose sum is σ = 607549176. Its totient is φ = 303774584.

The previous prime is 455661847. The next prime is 455661881. The reversal of 455661879 is 978166554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 455661879 - 2⁵ = 455661847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455661379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75943644 + ... + 75943649.

It is an arithmetic number, because the mean of its divisors is an integer number (151887294).

Almost surely, 2^455661879 is an apocalyptic number.

455661879 is a deficient number, since it is larger than the sum of its proper divisors (151887297).

455661879 is a wasteful number, since it uses less digits than its factorization.

455661879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151887296.

The product of its digits is 1814400, while the sum is 51.

The square root of 455661879 is about 21346.2380526406. The cubic root of 455661879 is about 769.5099366635.

The spelling of 455661879 in words is "four hundred fifty-five million, six hundred sixty-one thousand, eight hundred seventy-nine".