90798554 has 16 divisors (see below), whose sum is σ = 169805376. Its totient is φ = 35376000.

The previous prime is 90798541. The next prime is 90798577. The reversal of 90798554 is 45589709.

It is a junction number, because it is equal to n+sod(n) for n = 90798499 and 90798508.

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, 294647 + ... + 294954.

It is an arithmetic number, because the mean of its divisors is an integer number (10612836).

Almost surely, 2^90798554 is an apocalyptic number.

90798554 is a deficient number, since it is larger than the sum of its proper divisors (79006822).

90798554 is a wasteful number, since it uses less digits than its factorization.

90798554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589621.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 90798554 is about 9528.8275249372. The cubic root of 90798554 is about 449.4619973704.

The spelling of 90798554 in words is "ninety million, seven hundred ninety-eight thousand, five hundred fifty-four".