90046621 has 4 divisors (see below), whose sum is σ = 102910432. Its totient is φ = 77182812.

The previous prime is 90046613. The next prime is 90046639. The reversal of 90046621 is 12664009.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 90046621 - 2³ = 90046613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90046621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90046321) 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, 6431895 + ... + 6431908.

It is an arithmetic number, because the mean of its divisors is an integer number (25727608).

Almost surely, 2^90046621 is an apocalyptic number.

It is an amenable number.

90046621 is a deficient number, since it is larger than the sum of its proper divisors (12863811).

90046621 is a wasteful number, since it uses less digits than its factorization.

90046621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863810.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 90046621 is about 9489.2898048273. The cubic root of 90046621 is about 448.2178418800.

It can be divided in two parts, 9004 and 6621, that added together give a 6-th power (15625 = 5⁶).

The spelling of 90046621 in words is "ninety million, forty-six thousand, six hundred twenty-one".