90963761 has 4 divisors (see below), whose sum is σ = 103958592. Its totient is φ = 77968932.

The previous prime is 90963739. The next prime is 90963799. The reversal of 90963761 is 16736909.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16736909 = 7 ⋅2390987.

It is a cyclic number.

It is not a de Polignac number, because 90963761 - 2¹⁴ = 90947377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90965761) 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, 6497405 + ... + 6497418.

It is an arithmetic number, because the mean of its divisors is an integer number (25989648).

Almost surely, 2^90963761 is an apocalyptic number.

It is an amenable number.

90963761 is a deficient number, since it is larger than the sum of its proper divisors (12994831).

90963761 is a wasteful number, since it uses less digits than its factorization.

90963761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12994830.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 90963761 is about 9537.4923853181. The cubic root of 90963761 is about 449.7344293106.

The spelling of 90963761 in words is "ninety million, nine hundred sixty-three thousand, seven hundred sixty-one".