90767423 has 4 divisors (see below), whose sum is σ = 90929208. Its totient is φ = 90605640.

The previous prime is 90767393. The next prime is 90767431. The reversal of 90767423 is 32476709.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32476709 = 67 ⋅484727.

It is a cyclic number.

It is not a de Polignac number, because 90767423 - 2⁶ = 90767359 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 (90767483) 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, 80048 + ... + 81173.

It is an arithmetic number, because the mean of its divisors is an integer number (22732302).

Almost surely, 2^90767423 is an apocalyptic number.

90767423 is a deficient number, since it is larger than the sum of its proper divisors (161785).

90767423 is a wasteful number, since it uses less digits than its factorization.

90767423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161784.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 90767423 is about 9527.1938680810. The cubic root of 90767423 is about 449.4106243024.

The spelling of 90767423 in words is "ninety million, seven hundred sixty-seven thousand, four hundred twenty-three".