90647049 has 16 divisors (see below), whose sum is σ = 124139520. Its totient is φ = 58815120.

The previous prime is 90647041. The next prime is 90647113. The reversal of 90647049 is 94074609.

It is not a de Polignac number, because 90647049 - 2³ = 90647041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90646998 and 90647016.

It is not an unprimeable number, because it can be changed into a prime (90647041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14134 + ... + 19520.

It is an arithmetic number, because the mean of its divisors is an integer number (7758720).

Almost surely, 2^90647049 is an apocalyptic number.

It is an amenable number.

90647049 is a deficient number, since it is larger than the sum of its proper divisors (33492471).

90647049 is a wasteful number, since it uses less digits than its factorization.

90647049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 90647049 is about 9520.8743821143. The cubic root of 90647049 is about 449.2118698572.

The spelling of 90647049 in words is "ninety million, six hundred forty-seven thousand, forty-nine".