39387479 has 2 divisors, whose sum is σ = 39387480. Its totient is φ = 39387478.

The previous prime is 39387433. The next prime is 39387493. The reversal of 39387479 is 97478393.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39387479 - 2¹⁶ = 39321943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39387409) 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, 19693739 + 19693740.

It is an arithmetic number, because the mean of its divisors is an integer number (19693740).

Almost surely, 2^39387479 is an apocalyptic number.

39387479 is a deficient number, since it is larger than the sum of its proper divisors (1).

39387479 is an equidigital number, since it uses as much as digits as its factorization.

39387479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 50.

The square root of 39387479 is about 6275.9444707550. The cubic root of 39387479 is about 340.2405420081.

The spelling of 39387479 in words is "thirty-nine million, three hundred eighty-seven thousand, four hundred seventy-nine".