90419739 has 8 divisors (see below), whose sum is σ = 125801472. Its totient is φ = 57658920.

The previous prime is 90419729. The next prime is 90419743. The reversal of 90419739 is 93791409.

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

It is not a de Polignac number, because 90419739 - 2⁴ = 90419723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90419739.

It is not an unprimeable number, because it can be changed into a prime (90419729) 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, 655147 + ... + 655284.

It is an arithmetic number, because the mean of its divisors is an integer number (15725184).

Almost surely, 2^90419739 is an apocalyptic number.

90419739 is a deficient number, since it is larger than the sum of its proper divisors (35381733).

90419739 is a wasteful number, since it uses less digits than its factorization.

90419739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310457.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 90419739 is about 9508.9294350100. The cubic root of 90419739 is about 448.8360686137.

The spelling of 90419739 in words is "ninety million, four hundred nineteen thousand, seven hundred thirty-nine".