90782723 has 2 divisors, whose sum is σ = 90782724. Its totient is φ = 90782722.

The previous prime is 90782717. The next prime is 90782743. The reversal of 90782723 is 32728709.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90782723 - 2⁸ = 90782467 is a prime.

It is not a weakly prime, because it can be changed into another prime (90782743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45391361 + 45391362.

It is an arithmetic number, because the mean of its divisors is an integer number (45391362).

Almost surely, 2^90782723 is an apocalyptic number.

90782723 is a deficient number, since it is larger than the sum of its proper divisors (1).

90782723 is an equidigital number, since it uses as much as digits as its factorization.

90782723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 90782723 is about 9527.9967989079. The cubic root of 90782723 is about 449.4358741700.

The spelling of 90782723 in words is "ninety million, seven hundred eighty-two thousand, seven hundred twenty-three".