1396427537 has 4 divisors (see below), whose sum is σ = 1428902640. Its totient is φ = 1363952436.

The previous prime is 1396427531. The next prime is 1396427567. The reversal of 1396427537 is 7357246931.

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 a cyclic number.

It is not a de Polignac number, because 1396427537 - 2⁴ = 1396427521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1396427491 and 1396427500.

It is not an unprimeable number, because it can be changed into a prime (1396427531) 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, 16237487 + ... + 16237572.

It is an arithmetic number, because the mean of its divisors is an integer number (357225660).

Almost surely, 2^1396427537 is an apocalyptic number.

It is an amenable number.

1396427537 is a deficient number, since it is larger than the sum of its proper divisors (32475103).

1396427537 is an equidigital number, since it uses as much as digits as its factorization.

1396427537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32475102.

The product of its digits is 952560, while the sum is 47.

The square root of 1396427537 is about 37368.8043292798. The cubic root of 1396427537 is about 1117.7365899317.

The spelling of 1396427537 in words is "one billion, three hundred ninety-six million, four hundred twenty-seven thousand, five hundred thirty-seven".