3643723498 has 4 divisors (see below), whose sum is σ = 5465585250. Its totient is φ = 1821861748.

The previous prime is 3643723493. The next prime is 3643723513. The reversal of 3643723498 is 8943273463.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 3614053689 + 29669809 = 60117^2 + 5447^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3643723493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910930873 + ... + 910930876.

Almost surely, 2^3643723498 is an apocalyptic number.

3643723498 is a deficient number, since it is larger than the sum of its proper divisors (1821861752).

3643723498 is a wasteful number, since it uses less digits than its factorization.

3643723498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821861751.

The product of its digits is 2612736, while the sum is 49.

The square root of 3643723498 is about 60363.2628177106. The cubic root of 3643723498 is about 1538.7986777231.

The spelling of 3643723498 in words is "three billion, six hundred forty-three million, seven hundred twenty-three thousand, four hundred ninety-eight".