39489403 has 2 divisors, whose sum is σ = 39489404. Its totient is φ = 39489402.

The previous prime is 39489377. The next prime is 39489407. The reversal of 39489403 is 30498493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39489403 - 2¹⁷ = 39358331 is a prime.

It is not a weakly prime, because it can be changed into another prime (39489407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19744701 + 19744702.

It is an arithmetic number, because the mean of its divisors is an integer number (19744702).

Almost surely, 2^39489403 is an apocalyptic number.

39489403 is a deficient number, since it is larger than the sum of its proper divisors (1).

39489403 is an equidigital number, since it uses as much as digits as its factorization.

39489403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 39489403 is about 6284.0594363835. The cubic root of 39489403 is about 340.5337723091.

The spelling of 39489403 in words is "thirty-nine million, four hundred eighty-nine thousand, four hundred three".