890848644 has 48 divisors (see below), whose sum is σ = 2409071616. Its totient is φ = 250941600.

The previous prime is 890848631. The next prime is 890848657. The reversal of 890848644 is 446848098.

It is an interprime number because it is at equal distance from previous prime (890848631) and next prime (890848657).

It is a super-2 number, since 2×890848644² = 1587222613033277472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68722 + ... + 80649.

It is an arithmetic number, because the mean of its divisors is an integer number (50188992).

Almost surely, 2^890848644 is an apocalyptic number.

890848644 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

890848644 is an abundant number, since it is smaller than the sum of its proper divisors (1518222972).

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

890848644 is a wasteful number, since it uses less digits than its factorization.

890848644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149456 (or 149454 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The square root of 890848644 is about 29847.0876971272. The cubic root of 890848644 is about 962.2058088687.

The spelling of 890848644 in words is "eight hundred ninety million, eight hundred forty-eight thousand, six hundred forty-four".