90853961 has 12 divisors (see below), whose sum is σ = 101294160. Its totient is φ = 80815560.

The previous prime is 90853957. The next prime is 90853993. The reversal of 90853961 is 16935809.

It is not a de Polignac number, because 90853961 - 2² = 90853957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90853951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22430 + ... + 26168.

It is an arithmetic number, because the mean of its divisors is an integer number (8441180).

Almost surely, 2^90853961 is an apocalyptic number.

It is an amenable number.

90853961 is a deficient number, since it is larger than the sum of its proper divisors (10440199).

90853961 is a wasteful number, since it uses less digits than its factorization.

90853961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844 (or 3797 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 90853961 is about 9531.7344171982. The cubic root of 90853961 is about 449.5534021928.

The spelling of 90853961 in words is "ninety million, eight hundred fifty-three thousand, nine hundred sixty-one".