90754739 has 4 divisors (see below), whose sum is σ = 90773856. Its totient is φ = 90735624.

The previous prime is 90754733. The next prime is 90754759. The reversal of 90754739 is 93745709.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93745709 = 2531 ⋅37039.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90754739 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 90754739.

It is not an unprimeable number, because it can be changed into a prime (90754733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3617 + ... + 13949.

It is an arithmetic number, because the mean of its divisors is an integer number (22693464).

Almost surely, 2^90754739 is an apocalyptic number.

90754739 is a deficient number, since it is larger than the sum of its proper divisors (19117).

90754739 is a wasteful number, since it uses less digits than its factorization.

90754739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19116.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 90754739 is about 9526.5281713749. The cubic root of 90754739 is about 449.3896895158.

The spelling of 90754739 in words is "ninety million, seven hundred fifty-four thousand, seven hundred thirty-nine".