90067197 has 12 divisors (see below), whose sum is σ = 131999840. Its totient is φ = 54585960.

The previous prime is 90067169. The next prime is 90067223. The reversal of 90067197 is 79176009.

It is not a de Polignac number, because 90067197 - 2¹⁰ = 90066173 is a prime.

It is a super-2 number, since 2×90067197² = 16224199950873618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90067147) 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, 123697 + ... + 124422.

Almost surely, 2^90067197 is an apocalyptic number.

It is an amenable number.

90067197 is a deficient number, since it is larger than the sum of its proper divisors (41932643).

90067197 is a wasteful number, since it uses less digits than its factorization.

90067197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248144 (or 248133 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 90067197 is about 9490.3739125495. The cubic root of 90067197 is about 448.2519791148.

The spelling of 90067197 in words is "ninety million, sixty-seven thousand, one hundred ninety-seven".