90454497 has 64 divisors (see below), whose sum is σ = 153354240. Its totient is φ = 46267200.

The previous prime is 90454477. The next prime is 90454513. The reversal of 90454497 is 79445409.

It is not a de Polignac number, because 90454497 - 2⁷ = 90454369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90454417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 878148 + ... + 878250.

It is an arithmetic number, because the mean of its divisors is an integer number (2396160).

Almost surely, 2^90454497 is an apocalyptic number.

It is an amenable number.

90454497 is a deficient number, since it is larger than the sum of its proper divisors (62899743).

90454497 is a wasteful number, since it uses less digits than its factorization.

90454497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234.

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

The square root of 90454497 is about 9510.7569099415. The cubic root of 90454497 is about 448.8935731869.

It can be divided in two parts, 90454 and 497, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 90454497 in words is "ninety million, four hundred fifty-four thousand, four hundred ninety-seven".