283993904 has 30 divisors (see below), whose sum is σ = 559832100. Its totient is φ = 139562848.

The previous prime is 283993877. The next prime is 283993933. The reversal of 283993904 is 409399382.

It is a super-2 number, since 2×283993904² = 161305075018322432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53147 + ... + 58245.

It is an arithmetic number, because the mean of its divisors is an integer number (18661070).

Almost surely, 2^283993904 is an apocalyptic number.

It is an amenable number.

283993904 is a deficient number, since it is larger than the sum of its proper divisors (275838196).

283993904 is an equidigital number, since it uses as much as digits as its factorization.

283993904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225 (or 5160 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 283993904 is about 16852.1186798574. The cubic root of 283993904 is about 657.3091420763.

The spelling of 283993904 in words is "two hundred eighty-three million, nine hundred ninety-three thousand, nine hundred four".