90067951 has 4 divisors (see below), whose sum is σ = 90126432. Its totient is φ = 90009472.

The previous prime is 90067949. The next prime is 90067981. The reversal of 90067951 is 15976009.

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 90067951 - 2¹ = 90067949 is a prime.

It is a super-2 number, since 2×90067951² = 16224471594676802, 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 90067951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90067981) 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, 26866 + ... + 30031.

It is an arithmetic number, because the mean of its divisors is an integer number (22531608).

Almost surely, 2^90067951 is an apocalyptic number.

90067951 is a deficient number, since it is larger than the sum of its proper divisors (58481).

90067951 is a wasteful number, since it uses less digits than its factorization.

90067951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58480.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 90067951 is about 9490.4136369286. The cubic root of 90067951 is about 448.2532299625.

The spelling of 90067951 in words is "ninety million, sixty-seven thousand, nine hundred fifty-one".