3793697649 has 45 divisors (see below), whose sum is σ = 6407996153. Its totient is φ = 2162653416.

The previous prime is 3793697647. The next prime is 3793697657. The reversal of 3793697649 is 9467963973.

The square root of 3793697649 is 61593.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3793697649 - 2¹ = 3793697647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3793697647) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 9053962 + ... + 9054380.

Almost surely, 2^3793697649 is an apocalyptic number.

3793697649 is the 61593-rd square number.

3793697649 is the 30797-th centered octagonal number.

It is an amenable number.

3793697649 is a deficient number, since it is larger than the sum of its proper divisors (2614298504).

3793697649 is an frugal number, since it uses more digits than its factorization.

3793697649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 429 counting only the distinct ones).

The product of its digits is 46294416, while the sum is 63.

The cubic root of 3793697649 is about 1559.6275750512.

The spelling of 3793697649 in words is "three billion, seven hundred ninety-three million, six hundred ninety-seven thousand, six hundred forty-nine".