90943739 has 8 divisors (see below), whose sum is σ = 97115520. Its totient is φ = 84974400.

The previous prime is 90943729. The next prime is 90943757. The reversal of 90943739 is 93734909.

It is a happy number.

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 90943739 - 2⁸ = 90943483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90943739.

It is not an unprimeable number, because it can be changed into a prime (90943729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49682 + ... + 51479.

It is an arithmetic number, because the mean of its divisors is an integer number (12139440).

Almost surely, 2^90943739 is an apocalyptic number.

90943739 is a deficient number, since it is larger than the sum of its proper divisors (6171781).

90943739 is a wasteful number, since it uses less digits than its factorization.

90943739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101221.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 90943739 is about 9536.4426805806. The cubic root of 90943739 is about 449.7014299294.

The spelling of 90943739 in words is "ninety million, nine hundred forty-three thousand, seven hundred thirty-nine".