3646436331 has 4 divisors (see below), whose sum is σ = 4861915112. Its totient is φ = 2430957552.

The previous prime is 3646436327. The next prime is 3646436347. The reversal of 3646436331 is 1336346463.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3646436331 - 2² = 3646436327 is a prime.

It is a super-2 number, since 2×3646436331² = 26592995832073483122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3646436331.

It is not an unprimeable number, because it can be changed into a prime (3646436231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607739386 + ... + 607739391.

It is an arithmetic number, because the mean of its divisors is an integer number (1215478778).

Almost surely, 2^3646436331 is an apocalyptic number.

3646436331 is a deficient number, since it is larger than the sum of its proper divisors (1215478781).

3646436331 is a wasteful number, since it uses less digits than its factorization.

3646436331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215478780.

The product of its digits is 279936, while the sum is 39.

The square root of 3646436331 is about 60385.7295310738. The cubic root of 3646436331 is about 1539.1804729078.

The spelling of 3646436331 in words is "three billion, six hundred forty-six million, four hundred thirty-six thousand, three hundred thirty-one".