90453479 has 4 divisors (see below), whose sum is σ = 91349160. Its totient is φ = 89557800.

The previous prime is 90453469. The next prime is 90453527. The reversal of 90453479 is 97435409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97435409 = 2671 ⋅36479.

It is a cyclic number.

It is not a de Polignac number, because 90453479 - 2¹² = 90449383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90453409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447689 + ... + 447890.

It is an arithmetic number, because the mean of its divisors is an integer number (22837290).

Almost surely, 2^90453479 is an apocalyptic number.

90453479 is a deficient number, since it is larger than the sum of its proper divisors (895681).

90453479 is a wasteful number, since it uses less digits than its factorization.

90453479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895680.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 90453479 is about 9510.7033914427. The cubic root of 90453479 is about 448.8918891897.

The spelling of 90453479 in words is "ninety million, four hundred fifty-three thousand, four hundred seventy-nine".