90679843 has 2 divisors, whose sum is σ = 90679844. Its totient is φ = 90679842.

The previous prime is 90679817. The next prime is 90679891. The reversal of 90679843 is 34897609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90679843 - 2⁵ = 90679811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90679793 and 90679802.

It is not a weakly prime, because it can be changed into another prime (90979843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45339921 + 45339922.

It is an arithmetic number, because the mean of its divisors is an integer number (45339922).

Almost surely, 2^90679843 is an apocalyptic number.

90679843 is a deficient number, since it is larger than the sum of its proper divisors (1).

90679843 is an equidigital number, since it uses as much as digits as its factorization.

90679843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 90679843 is about 9522.5964421475. The cubic root of 90679843 is about 449.2660348046.

The spelling of 90679843 in words is "ninety million, six hundred seventy-nine thousand, eight hundred forty-three".