39462989 has 2 divisors, whose sum is σ = 39462990. Its totient is φ = 39462988.

The previous prime is 39462971. The next prime is 39463003. The reversal of 39462989 is 98926493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35010889 + 4452100 = 5917^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 39462989 - 2¹² = 39458893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39462919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19731494 + 19731495.

It is an arithmetic number, because the mean of its divisors is an integer number (19731495).

Almost surely, 2^39462989 is an apocalyptic number.

It is an amenable number.

39462989 is a deficient number, since it is larger than the sum of its proper divisors (1).

39462989 is an equidigital number, since it uses as much as digits as its factorization.

39462989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 39462989 is about 6281.9574178754. The cubic root of 39462989 is about 340.4578290210.

The spelling of 39462989 in words is "thirty-nine million, four hundred sixty-two thousand, nine hundred eighty-nine".