3699987397 has 2 divisors, whose sum is σ = 3699987398. Its totient is φ = 3699987396.

The previous prime is 3699987373. The next prime is 3699987419. The reversal of 3699987397 is 7937899963.

3699987397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3493519236 + 206468161 = 59106^2 + 14369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3699987397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3699987307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849993698 + 1849993699.

It is an arithmetic number, because the mean of its divisors is an integer number (1849993699).

Almost surely, 2^3699987397 is an apocalyptic number.

It is an amenable number.

3699987397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3699987397 is an equidigital number, since it uses as much as digits as its factorization.

3699987397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138883248, while the sum is 70.

The square root of 3699987397 is about 60827.5217068721. The cubic root of 3699987397 is about 1546.6786176608.

The spelling of 3699987397 in words is "three billion, six hundred ninety-nine million, nine hundred eighty-seven thousand, three hundred ninety-seven".