90379451 has 2 divisors, whose sum is σ = 90379452. Its totient is φ = 90379450.

The previous prime is 90379441. The next prime is 90379501. The reversal of 90379451 is 15497309.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90379451 - 2¹⁰ = 90378427 is a prime.

It is a super-2 number, since 2×90379451² = 16336890326122802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90379441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45189725 + 45189726.

It is an arithmetic number, because the mean of its divisors is an integer number (45189726).

Almost surely, 2^90379451 is an apocalyptic number.

90379451 is a deficient number, since it is larger than the sum of its proper divisors (1).

90379451 is an equidigital number, since it uses as much as digits as its factorization.

90379451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 90379451 is about 9506.8107691276. The cubic root of 90379451 is about 448.7693966161.

The spelling of 90379451 in words is "ninety million, three hundred seventy-nine thousand, four hundred fifty-one".