90863446 has 4 divisors (see below), whose sum is σ = 136295172. Its totient is φ = 45431722.

The previous prime is 90863441. The next prime is 90863447. The reversal of 90863446 is 64436809.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 90863399 and 90863408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90863441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22715860 + ... + 22715863.

It is an arithmetic number, because the mean of its divisors is an integer number (34073793).

Almost surely, 2^90863446 is an apocalyptic number.

90863446 is a deficient number, since it is larger than the sum of its proper divisors (45431726).

90863446 is a wasteful number, since it uses less digits than its factorization.

90863446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45431725.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 90863446 is about 9532.2319526961. The cubic root of 90863446 is about 449.5690458536.

The spelling of 90863446 in words is "ninety million, eight hundred sixty-three thousand, four hundred forty-six".