82990351 has 2 divisors, whose sum is σ = 82990352. Its totient is φ = 82990350.

The previous prime is 82990339. The next prime is 82990393. The reversal of 82990351 is 15309928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82990351 - 2⁵ = 82990319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82990351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82990331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41495175 + 41495176.

It is an arithmetic number, because the mean of its divisors is an integer number (41495176).

Almost surely, 2^82990351 is an apocalyptic number.

82990351 is a deficient number, since it is larger than the sum of its proper divisors (1).

82990351 is an equidigital number, since it uses as much as digits as its factorization.

82990351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 82990351 is about 9109.9040060804. The cubic root of 82990351 is about 436.1901630286.

The spelling of 82990351 in words is "eighty-two million, nine hundred ninety thousand, three hundred fifty-one".