90591673 has 8 divisors (see below), whose sum is σ = 93181536. Its totient is φ = 88020000.

The previous prime is 90591617. The next prime is 90591689. The reversal of 90591673 is 37619509.

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

It is a cyclic number.

It is not a de Polignac number, because 90591673 - 2¹³ = 90583481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90591773) 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, 5890 + ... + 14692.

It is an arithmetic number, because the mean of its divisors is an integer number (11647692).

Almost surely, 2^90591673 is an apocalyptic number.

It is an amenable number.

90591673 is a deficient number, since it is larger than the sum of its proper divisors (2589863).

90591673 is a wasteful number, since it uses less digits than its factorization.

90591673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9095.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 90591673 is about 9517.9658015776. The cubic root of 90591673 is about 449.1203771796.

The spelling of 90591673 in words is "ninety million, five hundred ninety-one thousand, six hundred seventy-three".