39700487 has 2 divisors, whose sum is σ = 39700488. Its totient is φ = 39700486.

The previous prime is 39700439. The next prime is 39700499. The reversal of 39700487 is 78400793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39700487 - 2¹⁶ = 39634951 is a prime.

It is a super-2 number, since 2×39700487² = 3152257336074338, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 39700487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39700187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19850243 + 19850244.

It is an arithmetic number, because the mean of its divisors is an integer number (19850244).

Almost surely, 2^39700487 is an apocalyptic number.

39700487 is a deficient number, since it is larger than the sum of its proper divisors (1).

39700487 is an equidigital number, since it uses as much as digits as its factorization.

39700487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 39700487 is about 6300.8322466163. The cubic root of 39700487 is about 341.1394498493.

The spelling of 39700487 in words is "thirty-nine million, seven hundred thousand, four hundred eighty-seven".