82290946 has 4 divisors (see below), whose sum is σ = 123436422. Its totient is φ = 41145472.

The previous prime is 82290907. The next prime is 82290953. The reversal of 82290946 is 64909228.

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

It can be written as a sum of positive squares in only one way, i.e., 82101721 + 189225 = 9061^2 + 435^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82290899 and 82290908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20572735 + ... + 20572738.

Almost surely, 2^82290946 is an apocalyptic number.

82290946 is a deficient number, since it is larger than the sum of its proper divisors (41145476).

82290946 is a wasteful number, since it uses less digits than its factorization.

82290946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41145475.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 82290946 is about 9071.4357187823. The cubic root of 82290946 is about 434.9613670715.

The spelling of 82290946 in words is "eighty-two million, two hundred ninety thousand, nine hundred forty-six".