90344773 has 8 divisors (see below), whose sum is σ = 93569400. Its totient is φ = 87127488.

The previous prime is 90344767. The next prime is 90344777. The reversal of 90344773 is 37744309.

It can be written as a sum of positive squares in 4 ways, for example, as 17447329 + 72897444 = 4177^2 + 8538^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(90344773) divides (90344773-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 90344773 - 2¹³ = 90336581 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 (90344777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38683 + ... + 40951.

It is an arithmetic number, because the mean of its divisors is an integer number (11696175).

Almost surely, 2^90344773 is an apocalyptic number.

It is an amenable number.

90344773 is a deficient number, since it is larger than the sum of its proper divisors (3224627).

90344773 is a wasteful number, since it uses less digits than its factorization.

90344773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 90344773 is about 9504.9867438098. The cubic root of 90344773 is about 448.7119926532.

The spelling of 90344773 in words is "ninety million, three hundred forty-four thousand, seven hundred seventy-three".