722048878 has 4 divisors (see below), whose sum is σ = 1083073320. Its totient is φ = 361024438.

The previous prime is 722048863. The next prime is 722048897. The reversal of 722048878 is 878840227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878840227 = 24859 ⋅35353.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180512218 + ... + 180512221.

It is an arithmetic number, because the mean of its divisors is an integer number (270768330).

Almost surely, 2^722048878 is an apocalyptic number.

722048878 is a deficient number, since it is larger than the sum of its proper divisors (361024442).

722048878 is a wasteful number, since it uses less digits than its factorization.

722048878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361024441.

The product of its (nonzero) digits is 401408, while the sum is 46.

The square root of 722048878 is about 26870.9671950974. The cubic root of 722048878 is about 897.1303155938.

The spelling of 722048878 in words is "seven hundred twenty-two million, forty-eight thousand, eight hundred seventy-eight".