3291386425 has 6 divisors (see below), whose sum is σ = 4081319198. Its totient is φ = 2633109120.

The previous prime is 3291386387. The next prime is 3291386429. The reversal of 3291386425 is 5246831923.

It can be written as a sum of positive squares in 3 ways, for example, as 2134521 + 3289251904 = 1461^2 + 57352^2 .

It is not a de Polignac number, because 3291386425 - 2²¹ = 3289289273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3291386429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65827704 + ... + 65827753.

Almost surely, 2^3291386425 is an apocalyptic number.

It is an amenable number.

3291386425 is a deficient number, since it is larger than the sum of its proper divisors (789932773).

3291386425 is a wasteful number, since it uses less digits than its factorization.

3291386425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131655467 (or 131655462 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 3291386425 is about 57370.6059319579. The cubic root of 3291386425 is about 1487.5090769872.

The spelling of 3291386425 in words is "three billion, two hundred ninety-one million, three hundred eighty-six thousand, four hundred twenty-five".