90423711 has 48 divisors (see below), whose sum is σ = 158146560. Its totient is φ = 48686400.

The previous prime is 90423709. The next prime is 90423719. The reversal of 90423711 is 11732409.

It is not a de Polignac number, because 90423711 - 2¹ = 90423709 is a prime.

It is a super-2 number, since 2×90423711² = 16352895022023042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90423719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77986 + ... + 79136.

It is an arithmetic number, because the mean of its divisors is an integer number (3294720).

Almost surely, 2^90423711 is an apocalyptic number.

90423711 is a deficient number, since it is larger than the sum of its proper divisors (67722849).

90423711 is a wasteful number, since it uses less digits than its factorization.

90423711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 90423711 is about 9509.1382890354. The cubic root of 90423711 is about 448.8426407435.

It can be divided in two parts, 90 and 423711, that added together give a square (423801 = 651²).

The spelling of 90423711 in words is "ninety million, four hundred twenty-three thousand, seven hundred eleven".