90743049 has 24 divisors (see below), whose sum is σ = 134219592. Its totient is φ = 59055360.

The previous prime is 90743039. The next prime is 90743053. The reversal of 90743049 is 94034709.

It can be written as a sum of positive squares in 4 ways, for example, as 60140025 + 30603024 = 7755^2 + 5532^2 .

It is not a de Polignac number, because 90743049 - 2²⁴ = 73965833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90743039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133699 + ... + 134375.

It is an arithmetic number, because the mean of its divisors is an integer number (5592483).

Almost surely, 2^90743049 is an apocalyptic number.

It is an amenable number.

90743049 is a deficient number, since it is larger than the sum of its proper divisors (43476543).

90743049 is a wasteful number, since it uses less digits than its factorization.

90743049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 90743049 is about 9525.9146017587. The cubic root of 90743049 is about 449.3703935866.

It can be divided in two parts, 907 and 43049, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 90743049 in words is "ninety million, seven hundred forty-three thousand, forty-nine".