90463919 has 16 divisors (see below), whose sum is σ = 117891648. Its totient is φ = 67364352.

The previous prime is 90463909. The next prime is 90463937. The reversal of 90463919 is 91936409.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90463919 is a prime.

It is a super-2 number, since 2×90463919² = 16367441281677122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90463909) 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, 27692 + ... + 30785.

It is an arithmetic number, because the mean of its divisors is an integer number (7368228).

Almost surely, 2^90463919 is an apocalyptic number.

90463919 is a deficient number, since it is larger than the sum of its proper divisors (27427729).

90463919 is a wasteful number, since it uses less digits than its factorization.

90463919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58514.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 90463919 is about 9511.2522309105. The cubic root of 90463919 is about 448.9091586601.

The spelling of 90463919 in words is "ninety million, four hundred sixty-three thousand, nine hundred nineteen".