3642723057 has 4 divisors (see below), whose sum is σ = 4856964080. Its totient is φ = 2428482036.

The previous prime is 3642723053. The next prime is 3642723061. The reversal of 3642723057 is 7503272463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3642723053) and next prime (3642723061).

It is not a de Polignac number, because 3642723057 - 2² = 3642723053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3642723053) 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, 607120507 + ... + 607120512.

It is an arithmetic number, because the mean of its divisors is an integer number (1214241020).

Almost surely, 2^3642723057 is an apocalyptic number.

It is an amenable number.

3642723057 is a deficient number, since it is larger than the sum of its proper divisors (1214241023).

3642723057 is a wasteful number, since it uses less digits than its factorization.

3642723057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214241022.

The product of its (nonzero) digits is 211680, while the sum is 39.

The square root of 3642723057 is about 60354.9754121398. The cubic root of 3642723057 is about 1538.6578311224.

The spelling of 3642723057 in words is "three billion, six hundred forty-two million, seven hundred twenty-three thousand, fifty-seven".