90647646 has 32 divisors (see below), whose sum is σ = 190003968. Its totient is φ = 28776000.

The previous prime is 90647639. The next prime is 90647653. The reversal of 90647646 is 64674609.

It is an interprime number because it is at equal distance from previous prime (90647639) and next prime (90647653).

It is a junction number, because it is equal to n+sod(n) for n = 90647598 and 90647607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33330 + ... + 35946.

It is an arithmetic number, because the mean of its divisors is an integer number (5937624).

Almost surely, 2^90647646 is an apocalyptic number.

90647646 is an abundant number, since it is smaller than the sum of its proper divisors (99356322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90647646 is a wasteful number, since it uses less digits than its factorization.

90647646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 90647646 is about 9520.9057342251. The cubic root of 90647646 is about 449.2128560224.

The spelling of 90647646 in words is "ninety million, six hundred forty-seven thousand, six hundred forty-six".