82994389 has 2 divisors, whose sum is σ = 82994390. Its totient is φ = 82994388.

The previous prime is 82994383. The next prime is 82994407. The reversal of 82994389 is 98349928.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49238289 + 33756100 = 7017^2 + 5810^2 .

It is a cyclic number.

It is not a de Polignac number, because 82994389 - 2³ = 82994381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82994381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41497194 + 41497195.

It is an arithmetic number, because the mean of its divisors is an integer number (41497195).

Almost surely, 2^82994389 is an apocalyptic number.

It is an amenable number.

82994389 is a deficient number, since it is larger than the sum of its proper divisors (1).

82994389 is an equidigital number, since it uses as much as digits as its factorization.

82994389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 52.

The square root of 82994389 is about 9110.1256303083. The cubic root of 82994389 is about 436.1972373744.

The spelling of 82994389 in words is "eighty-two million, nine hundred ninety-four thousand, three hundred eighty-nine".