90420467 has 4 divisors (see below), whose sum is σ = 95739336. Its totient is φ = 85101600.

The previous prime is 90420437. The next prime is 90420469. The reversal of 90420467 is 76402409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90420467 - 2¹⁶ = 90354931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90420469) 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, 2659409 + ... + 2659442.

It is an arithmetic number, because the mean of its divisors is an integer number (23934834).

Almost surely, 2^90420467 is an apocalyptic number.

90420467 is a deficient number, since it is larger than the sum of its proper divisors (5318869).

90420467 is a wasteful number, since it uses less digits than its factorization.

90420467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318868.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 90420467 is about 9508.9677147417. The cubic root of 90420467 is about 448.8372731877.

The spelling of 90420467 in words is "ninety million, four hundred twenty thousand, four hundred sixty-seven".