90454843 has 4 divisors (see below), whose sum is σ = 92558488. Its totient is φ = 88351200.

The previous prime is 90454831. The next prime is 90454873. The reversal of 90454843 is 34845409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34845409 = 5903².

It is a cyclic number.

It is not a de Polignac number, because 90454843 - 2¹³ = 90446651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90454813) 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, 1051758 + ... + 1051843.

It is an arithmetic number, because the mean of its divisors is an integer number (23139622).

Almost surely, 2^90454843 is an apocalyptic number.

90454843 is a deficient number, since it is larger than the sum of its proper divisors (2103645).

90454843 is a wasteful number, since it uses less digits than its factorization.

90454843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103644.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 90454843 is about 9510.7750998538. The cubic root of 90454843 is about 448.8941455446.

The spelling of 90454843 in words is "ninety million, four hundred fifty-four thousand, eight hundred forty-three".