90457911 has 16 divisors (see below), whose sum is σ = 134611200. Its totient is φ = 60035544.

The previous prime is 90457889. The next prime is 90457921. The reversal of 90457911 is 11975409.

It is not a de Polignac number, because 90457911 - 2⁹ = 90457399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90457921) 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, 1251 + ... + 13508.

It is an arithmetic number, because the mean of its divisors is an integer number (8413200).

Almost surely, 2^90457911 is an apocalyptic number.

90457911 is a deficient number, since it is larger than the sum of its proper divisors (44153289).

90457911 is a wasteful number, since it uses less digits than its factorization.

90457911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14995 (or 14989 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 90457911 is about 9510.9363892311. The cubic root of 90457911 is about 448.8992206061.

The spelling of 90457911 in words is "ninety million, four hundred fifty-seven thousand, nine hundred eleven".