1392697955 has 16 divisors (see below), whose sum is σ = 1902438144. Its totient is φ = 968832480.

The previous prime is 1392697951. The next prime is 1392697961. The reversal of 1392697955 is 5597962931.

It is a happy number.

It is not a de Polignac number, because 1392697955 - 2² = 1392697951 is a prime.

It is a super-2 number, since 2×1392697955² = 3879215187722364050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1392697955.

It is not an unprimeable number, because it can be changed into a prime (1392697951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549209 + ... + 551738.

It is an arithmetic number, because the mean of its divisors is an integer number (118902384).

Almost surely, 2^1392697955 is an apocalyptic number.

1392697955 is a deficient number, since it is larger than the sum of its proper divisors (509740189).

1392697955 is a wasteful number, since it uses less digits than its factorization.

1392697955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100986.

The product of its digits is 4592700, while the sum is 56.

The square root of 1392697955 is about 37318.8686189708. The cubic root of 1392697955 is about 1116.7406182058.

The spelling of 1392697955 in words is "one billion, three hundred ninety-two million, six hundred ninety-seven thousand, nine hundred fifty-five".