90063951 has 4 divisors (see below), whose sum is σ = 120085272. Its totient is φ = 60042632.

The previous prime is 90063947. The next prime is 90063979. The reversal of 90063951 is 15936009.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90063951 - 2² = 90063947 is a prime.

It is a super-2 number, since 2×90063951² = 16223030539460802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90063931) 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, 15010656 + ... + 15010661.

It is an arithmetic number, because the mean of its divisors is an integer number (30021318).

Almost surely, 2^90063951 is an apocalyptic number.

90063951 is a deficient number, since it is larger than the sum of its proper divisors (30021321).

90063951 is a wasteful number, since it uses less digits than its factorization.

90063951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30021320.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 90063951 is about 9490.2028956182. The cubic root of 90063951 is about 448.2465940858.

The spelling of 90063951 in words is "ninety million, sixty-three thousand, nine hundred fifty-one".