90000743 has 8 divisors (see below), whose sum is σ = 103029120. Its totient is φ = 77015160.

The previous prime is 90000697. The next prime is 90000749. The reversal of 90000743 is 34700009.

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 90000743 - 2¹⁴ = 89984359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90000749) 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, 6053 + ... + 14718.

It is an arithmetic number, because the mean of its divisors is an integer number (12878640).

Almost surely, 2^90000743 is an apocalyptic number.

90000743 is a deficient number, since it is larger than the sum of its proper divisors (13028377).

90000743 is a wasteful number, since it uses less digits than its factorization.

90000743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21397.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 90000743 is about 9486.8721399627. The cubic root of 90000743 is about 448.1417078685.

The spelling of 90000743 in words is "ninety million, seven hundred forty-three", and thus it is an aban number.