1396642877 has 8 divisors (see below), whose sum is σ = 1605722496. Its totient is φ = 1189953072.

The previous prime is 1396642873. The next prime is 1396642903. The reversal of 1396642877 is 7782466931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1396642877 - 2² = 1396642873 is a prime.

It is a super-2 number, since 2×1396642877² = 3901222651749674258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396642873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596198 + ... + 598535.

It is an arithmetic number, because the mean of its divisors is an integer number (200715312).

Almost surely, 2^1396642877 is an apocalyptic number.

It is an amenable number.

1396642877 is a deficient number, since it is larger than the sum of its proper divisors (209079619).

1396642877 is a wasteful number, since it uses less digits than its factorization.

1396642877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194907.

The product of its digits is 3048192, while the sum is 53.

The square root of 1396642877 is about 37371.6854985161. The cubic root of 1396642877 is about 1117.7940415406.

The spelling of 1396642877 in words is "one billion, three hundred ninety-six million, six hundred forty-two thousand, eight hundred seventy-seven".