90772845 has 8 divisors (see below), whose sum is σ = 145236576. Its totient is φ = 48412176.

The previous prime is 90772831. The next prime is 90772879. The reversal of 90772845 is 54827709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90772845 - 2⁸ = 90772589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90772797 and 90772806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3025747 + ... + 3025776.

It is an arithmetic number, because the mean of its divisors is an integer number (18154572).

Almost surely, 2^90772845 is an apocalyptic number.

It is an amenable number.

90772845 is a deficient number, since it is larger than the sum of its proper divisors (54463731).

90772845 is a wasteful number, since it uses less digits than its factorization.

90772845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051531.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 90772845 is about 9527.4784177137. The cubic root of 90772845 is about 449.4195726520.

The spelling of 90772845 in words is "ninety million, seven hundred seventy-two thousand, eight hundred forty-five".