90749671 has 8 divisors (see below), whose sum is σ = 93985920. Its totient is φ = 87520608.

The previous prime is 90749669. The next prime is 90749677. The reversal of 90749671 is 17694709.

It is a happy number.

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

It is not a de Polignac number, because 90749671 - 2¹ = 90749669 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 (90749677) 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, 44445 + ... + 46441.

It is an arithmetic number, because the mean of its divisors is an integer number (11748240).

Almost surely, 2^90749671 is an apocalyptic number.

90749671 is a deficient number, since it is larger than the sum of its proper divisors (3236249).

90749671 is a wasteful number, since it uses less digits than its factorization.

90749671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 90749671 is about 9526.2621735915. The cubic root of 90749671 is about 449.3813242985.

The spelling of 90749671 in words is "ninety million, seven hundred forty-nine thousand, six hundred seventy-one".