3992968945 has 16 divisors (see below), whose sum is σ = 5477558400. Its totient is φ = 2737292544.

The previous prime is 3992968939. The next prime is 3992968951. The reversal of 3992968945 is 5498692993.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3992968939) and next prime (3992968951).

It is not a de Polignac number, because 3992968945 - 2¹¹ = 3992966897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136206 + ... + 162904.

It is an arithmetic number, because the mean of its divisors is an integer number (342347400).

Almost surely, 2^3992968945 is an apocalyptic number.

3992968945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3992968945 is a deficient number, since it is larger than the sum of its proper divisors (1484589455).

3992968945 is a wasteful number, since it uses less digits than its factorization.

3992968945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30984.

The product of its digits is 37791360, while the sum is 64.

The square root of 3992968945 is about 63189.9433850039. The cubic root of 3992968945 is about 1586.4704144661.

The spelling of 3992968945 in words is "three billion, nine hundred ninety-two million, nine hundred sixty-eight thousand, nine hundred forty-five".