90718437 has 8 divisors (see below), whose sum is σ = 121002336. Its totient is φ = 60456752.

The previous prime is 90718403. The next prime is 90718447. The reversal of 90718437 is 73481709.

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 90718437 - 2⁶ = 90718373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90718395 and 90718404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90718447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11203 + ... + 17519.

It is an arithmetic number, because the mean of its divisors is an integer number (15125292).

Almost surely, 2^90718437 is an apocalyptic number.

It is an amenable number.

90718437 is a deficient number, since it is larger than the sum of its proper divisors (30283899).

90718437 is a wasteful number, since it uses less digits than its factorization.

90718437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11107.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 90718437 is about 9524.6226696914. The cubic root of 90718437 is about 449.3297627272.

The spelling of 90718437 in words is "ninety million, seven hundred eighteen thousand, four hundred thirty-seven".