90437071 has 8 divisors (see below), whose sum is σ = 92980224. Its totient is φ = 87919800.

The previous prime is 90437047. The next prime is 90437099. The reversal of 90437071 is 17073409.

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 90437071 - 2⁹ = 90436559 is a prime.

It is a super-2 number, since 2×90437071² = 16357727622118082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90437371) 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, 726 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (11622528).

Almost surely, 2^90437071 is an apocalyptic number.

90437071 is a deficient number, since it is larger than the sum of its proper divisors (2543153).

90437071 is a wasteful number, since it uses less digits than its factorization.

90437071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12941.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 90437071 is about 9509.8407452491. The cubic root of 90437071 is about 448.8647449840.

The spelling of 90437071 in words is "ninety million, four hundred thirty-seven thousand, seventy-one".