3748643387 has 2 divisors, whose sum is σ = 3748643388. Its totient is φ = 3748643386.

The previous prime is 3748643359. The next prime is 3748643401. The reversal of 3748643387 is 7833468473.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3748643387 - 2⁸ = 3748643131 is a prime.

It is not a weakly prime, because it can be changed into another prime (3748643687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1874321693 + 1874321694.

It is an arithmetic number, because the mean of its divisors is an integer number (1874321694).

Almost surely, 2^3748643387 is an apocalyptic number.

3748643387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3748643387 is an equidigital number, since it uses as much as digits as its factorization.

3748643387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 53.

The square root of 3748643387 is about 61226.1658688505. The cubic root of 3748643387 is about 1553.4288831801.

The spelling of 3748643387 in words is "three billion, seven hundred forty-eight million, six hundred forty-three thousand, three hundred eighty-seven".