90739407 has 8 divisors (see below), whose sum is σ = 131984640. Its totient is φ = 54993560.

The previous prime is 90739403. The next prime is 90739409. The reversal of 90739407 is 70493709.

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 90739407 - 2² = 90739403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90739403) 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, 1374807 + ... + 1374872.

It is an arithmetic number, because the mean of its divisors is an integer number (16498080).

Almost surely, 2^90739407 is an apocalyptic number.

90739407 is a deficient number, since it is larger than the sum of its proper divisors (41245233).

90739407 is a wasteful number, since it uses less digits than its factorization.

90739407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749693.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 90739407 is about 9525.7234370939. The cubic root of 90739407 is about 449.3643816335.

The spelling of 90739407 in words is "ninety million, seven hundred thirty-nine thousand, four hundred seven".