90997048 has 8 divisors (see below), whose sum is σ = 170619480. Its totient is φ = 45498520.

The previous prime is 90997007. The next prime is 90997063. The reversal of 90997048 is 84079909.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 90996989 and 90997007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5687308 + ... + 5687323.

It is an arithmetic number, because the mean of its divisors is an integer number (21327435).

Almost surely, 2^90997048 is an apocalyptic number.

It is an amenable number.

90997048 is a deficient number, since it is larger than the sum of its proper divisors (79622432).

90997048 is a wasteful number, since it uses less digits than its factorization.

90997048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11374637 (or 11374633 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 90997048 is about 9539.2372860727. The cubic root of 90997048 is about 449.7892807668.

The spelling of 90997048 in words is "ninety million, nine hundred ninety-seven thousand, forty-eight".