3291749047 has 2 divisors, whose sum is σ = 3291749048. Its totient is φ = 3291749046.

The previous prime is 3291749009. The next prime is 3291749051. The reversal of 3291749047 is 7409471923.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3291749047 - 2¹⁵ = 3291716279 is a prime.

It is a super-2 number, since 2×3291749047² = 21671223576850816418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3291748988 and 3291749006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3291749077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645874523 + 1645874524.

It is an arithmetic number, because the mean of its divisors is an integer number (1645874524).

Almost surely, 2^3291749047 is an apocalyptic number.

3291749047 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291749047 is an equidigital number, since it uses as much as digits as its factorization.

3291749047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 3291749047 is about 57373.7661915269. The cubic root of 3291749047 is about 1487.5637027729.

The spelling of 3291749047 in words is "three billion, two hundred ninety-one million, seven hundred forty-nine thousand, forty-seven".