3743643731 has 6 divisors (see below), whose sum is σ = 3868302996. Its totient is φ = 3622880100.

The previous prime is 3743643697. The next prime is 3743643733. The reversal of 3743643731 is 1373463473.

It is a happy number.

It is not a de Polignac number, because 3743643731 - 2¹⁴ = 3743627347 is a prime.

It is a super-2 number, since 2×3743643731² = 28029736769311200722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3743643733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1946825 + ... + 1948746.

It is an arithmetic number, because the mean of its divisors is an integer number (644717166).

Almost surely, 2^3743643731 is an apocalyptic number.

3743643731 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3743643731 is a deficient number, since it is larger than the sum of its proper divisors (124659265).

3743643731 is an equidigital number, since it uses as much as digits as its factorization.

3743643731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895633 (or 3895602 counting only the distinct ones).

The product of its digits is 381024, while the sum is 41.

The square root of 3743643731 is about 61185.3228397138. The cubic root of 3743643731 is about 1552.7379607464.

The spelling of 3743643731 in words is "three billion, seven hundred forty-three million, six hundred forty-three thousand, seven hundred thirty-one".