3491445797 has 4 divisors (see below), whose sum is σ = 3990223776. Its totient is φ = 2992667820.

The previous prime is 3491445781. The next prime is 3491445799. The reversal of 3491445797 is 7975441943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7975441943 = 7 ⋅1139348849.

It is a cyclic number.

It is not a de Polignac number, because 3491445797 - 2⁴ = 3491445781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491445799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249388979 + ... + 249388992.

It is an arithmetic number, because the mean of its divisors is an integer number (997555944).

Almost surely, 2^3491445797 is an apocalyptic number.

It is an amenable number.

3491445797 is a deficient number, since it is larger than the sum of its proper divisors (498777979).

3491445797 is an equidigital number, since it uses as much as digits as its factorization.

3491445797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498777978.

The product of its digits is 3810240, while the sum is 53.

The square root of 3491445797 is about 59088.4573922860. The cubic root of 3491445797 is about 1517.0565435935.

The spelling of 3491445797 in words is "three billion, four hundred ninety-one million, four hundred forty-five thousand, seven hundred ninety-seven".