3756637 has 2 divisors, whose sum is σ = 3756638. Its totient is φ = 3756636.

The previous prime is 3756629. The next prime is 3756667. The reversal of 3756637 is 7366573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2477476 + 1279161 = 1574^2 + 1131^2 .

It is an emirp because it is prime and its reverse (7366573) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3756637 - 2³ = 3756629 is a prime.

It is a super-2 number, since 2×3756637² = 28224643099538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3756596 and 3756605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3756607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1878318 + 1878319.

It is an arithmetic number, because the mean of its divisors is an integer number (1878319).

Almost surely, 2^3756637 is an apocalyptic number.

It is an amenable number.

3756637 is a deficient number, since it is larger than the sum of its proper divisors (1).

3756637 is an equidigital number, since it uses as much as digits as its factorization.

3756637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 37.

The square root of 3756637 is about 1938.2045815651. The cubic root of 3756637 is about 155.4532277315.

The spelling of 3756637 in words is "three million, seven hundred fifty-six thousand, six hundred thirty-seven".