90683279 has 2 divisors, whose sum is σ = 90683280. Its totient is φ = 90683278.

The previous prime is 90683269. The next prime is 90683297. The reversal of 90683279 is 97238609.

Together with next prime (90683297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90683279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90683269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45341639 + 45341640.

It is an arithmetic number, because the mean of its divisors is an integer number (45341640).

Almost surely, 2^90683279 is an apocalyptic number.

90683279 is a deficient number, since it is larger than the sum of its proper divisors (1).

90683279 is an equidigital number, since it uses as much as digits as its factorization.

90683279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 90683279 is about 9522.7768534183. The cubic root of 90683279 is about 449.2717091953.

The spelling of 90683279 in words is "ninety million, six hundred eighty-three thousand, two hundred seventy-nine".