3973331437346 has 16 divisors (see below), whose sum is σ = 6222078660600. Its totient is φ = 1900562203008.

The previous prime is 3973331437343. The next prime is 3973331437349. The reversal of 3973331437346 is 6437341333793.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3973331437343) and next prime (3973331437349).

It can be written as a sum of positive squares in 4 ways, for example, as 3968562015625 + 4769421721 = 1992125^2 + 69061^2 .

It is a super-2 number, since 2×3973331437346² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3973331437291 and 3973331437300.

It is not an unprimeable number, because it can be changed into a prime (3973331437343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314240075 + ... + 314252718.

Almost surely, 2^{3973331437346} is an apocalyptic number.

3973331437346 is a deficient number, since it is larger than the sum of its proper divisors (2248747223254).

3973331437346 is a wasteful number, since it uses less digits than its factorization.

3973331437346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628492933.

The product of its digits is 30862944, while the sum is 56.

The spelling of 3973331437346 in words is "three trillion, nine hundred seventy-three billion, three hundred thirty-one million, four hundred thirty-seven thousand, three hundred forty-six".