90791345 has 8 divisors (see below), whose sum is σ = 109239360. Its totient is φ = 72439920.

The previous prime is 90791333. The next prime is 90791353. The reversal of 90791345 is 54319709.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-90791345 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90791299 and 90791308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22061 + ... + 25850.

It is an arithmetic number, because the mean of its divisors is an integer number (13654920).

Almost surely, 2^90791345 is an apocalyptic number.

It is an amenable number.

90791345 is a deficient number, since it is larger than the sum of its proper divisors (18448015).

90791345 is a wasteful number, since it uses less digits than its factorization.

90791345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48295.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 90791345 is about 9528.4492442370. The cubic root of 90791345 is about 449.4501019633.

The spelling of 90791345 in words is "ninety million, seven hundred ninety-one thousand, three hundred forty-five".