90989347 has 8 divisors (see below), whose sum is σ = 95904000. Its totient is φ = 86087304.

The previous prime is 90989341. The next prime is 90989351. The reversal of 90989347 is 74398909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90989347 is a prime.

It is a super-2 number, since 2×90989347² = 16558122534972818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90989347.

It is not an unprimeable number, because it can be changed into a prime (90989341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14154 + ... + 19552.

It is an arithmetic number, because the mean of its divisors is an integer number (11988000).

Almost surely, 2^90989347 is an apocalyptic number.

90989347 is a deficient number, since it is larger than the sum of its proper divisors (4914653).

90989347 is a wasteful number, since it uses less digits than its factorization.

90989347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 90989347 is about 9538.8336289087. The cubic root of 90989347 is about 449.7765919854.

The spelling of 90989347 in words is "ninety million, nine hundred eighty-nine thousand, three hundred forty-seven".