90540379 has 2 divisors, whose sum is σ = 90540380. Its totient is φ = 90540378.

The previous prime is 90540371. The next prime is 90540389. The reversal of 90540379 is 97304509.

It is a weak prime.

It is an emirp because it is prime and its reverse (97304509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90540379 - 2³ = 90540371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90540371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45270189 + 45270190.

It is an arithmetic number, because the mean of its divisors is an integer number (45270190).

Almost surely, 2^90540379 is an apocalyptic number.

90540379 is a deficient number, since it is larger than the sum of its proper divisors (1).

90540379 is an equidigital number, since it uses as much as digits as its factorization.

90540379 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 37.

The square root of 90540379 is about 9515.2708316684. The cubic root of 90540379 is about 449.0355955464.

The spelling of 90540379 in words is "ninety million, five hundred forty thousand, three hundred seventy-nine".