677948442 has 8 divisors (see below), whose sum is σ = 1355896896. Its totient is φ = 225982812.

The previous prime is 677948431. The next prime is 677948471. The reversal of 677948442 is 244849776.

It is a happy number.

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

677948442 is an admirable number.

It is a super-2 number, since 2×677948442² = 919228180020454728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56495698 + ... + 56495709.

It is an arithmetic number, because the mean of its divisors is an integer number (169487112).

Almost surely, 2^677948442 is an apocalyptic number.

677948442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677948442 is a wasteful number, since it uses less digits than its factorization.

677948442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112991412.

The product of its digits is 2709504, while the sum is 51.

The square root of 677948442 is about 26037.4430772301. The cubic root of 677948442 is about 878.4806954334.

The spelling of 677948442 in words is "six hundred seventy-seven million, nine hundred forty-eight thousand, four hundred forty-two".