90863457 has 16 divisors (see below), whose sum is σ = 124710912. Its totient is φ = 58821840.

The previous prime is 90863447. The next prime is 90863459. The reversal of 90863457 is 75436809.

It is a happy number.

It is not a de Polignac number, because 90863457 - 2⁴ = 90863441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90863459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11088 + ... + 17454.

It is an arithmetic number, because the mean of its divisors is an integer number (7794432).

Almost surely, 2^90863457 is an apocalyptic number.

It is an amenable number.

90863457 is a deficient number, since it is larger than the sum of its proper divisors (33847455).

90863457 is a wasteful number, since it uses less digits than its factorization.

90863457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6508.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 90863457 is about 9532.2325296858. The cubic root of 90863457 is about 449.5690639953.

The spelling of 90863457 in words is "ninety million, eight hundred sixty-three thousand, four hundred fifty-seven".