90060431 has 2 divisors, whose sum is σ = 90060432. Its totient is φ = 90060430.

The previous prime is 90060427. The next prime is 90060473. The reversal of 90060431 is 13406009.

It is a weak prime.

It is an emirp because it is prime and its reverse (13406009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90060431 - 2² = 90060427 is a prime.

It is a super-2 number, since 2×90060431² = 16221762463811522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90060397 and 90060406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90060031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45030215 + 45030216.

It is an arithmetic number, because the mean of its divisors is an integer number (45030216).

Almost surely, 2^90060431 is an apocalyptic number.

90060431 is a deficient number, since it is larger than the sum of its proper divisors (1).

90060431 is an equidigital number, since it uses as much as digits as its factorization.

90060431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 90060431 is about 9490.0174393939. The cubic root of 90060431 is about 448.2407543517.

The spelling of 90060431 in words is "ninety million, sixty thousand, four hundred thirty-one".