90819046 has 4 divisors (see below), whose sum is σ = 136228572. Its totient is φ = 45409522.

The previous prime is 90819041. The next prime is 90819067. The reversal of 90819046 is 64091809.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64091809 = 673 ⋅95233.

It is a junction number, because it is equal to n+sod(n) for n = 90818996 and 90819014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90819041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22704760 + ... + 22704763.

It is an arithmetic number, because the mean of its divisors is an integer number (34057143).

Almost surely, 2^90819046 is an apocalyptic number.

90819046 is a deficient number, since it is larger than the sum of its proper divisors (45409526).

90819046 is a wasteful number, since it uses less digits than its factorization.

90819046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45409525.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 90819046 is about 9529.9027277302. The cubic root of 90819046 is about 449.4958073157.

The spelling of 90819046 in words is "ninety million, eight hundred nineteen thousand, forty-six".