748637 has 2 divisors, whose sum is σ = 748638. Its totient is φ = 748636.

The previous prime is 748633. The next prime is 748639. The reversal of 748637 is 736847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729316 + 19321 = 854^2 + 139^2 .

It is an emirp because it is prime and its reverse (736847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 748637 - 2² = 748633 is a prime.

Together with 748639, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 748597 and 748606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374318 + 374319.

It is an arithmetic number, because the mean of its divisors is an integer number (374319).

2⁷⁴⁸⁶³⁷ is an apocalyptic number.

It is an amenable number.

748637 is a deficient number, since it is larger than the sum of its proper divisors (1).

748637 is an equidigital number, since it uses as much as digits as its factorization.

748637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 748637 is about 865.2381175145. The cubic root of 748637 is about 90.8009577030.

The spelling of 748637 in words is "seven hundred forty-eight thousand, six hundred thirty-seven".