90979149 has 8 divisors (see below), whose sum is σ = 121350112. Its totient is φ = 60630480.

The previous prime is 90979129. The next prime is 90979153. The reversal of 90979149 is 94197909.

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

It is not a de Polignac number, because 90979149 - 2¹⁵ = 90946381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90979098 and 90979107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90979129) 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, 10959 + ... + 17379.

It is an arithmetic number, because the mean of its divisors is an integer number (15168764).

Almost surely, 2^90979149 is an apocalyptic number.

It is an amenable number.

90979149 is a deficient number, since it is larger than the sum of its proper divisors (30370963).

90979149 is a wasteful number, since it uses less digits than its factorization.

90979149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11147.

The product of its (nonzero) digits is 183708, while the sum is 48.

The square root of 90979149 is about 9538.2990622018. The cubic root of 90979149 is about 449.7597878458.

The spelling of 90979149 in words is "ninety million, nine hundred seventy-nine thousand, one hundred forty-nine".