4249647797 has 2 divisors, whose sum is σ = 4249647798. Its totient is φ = 4249647796.

The previous prime is 4249647751. The next prime is 4249647841. The reversal of 4249647797 is 7977469424.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3016865476 + 1232782321 = 54926^2 + 35111^2 .

It is a cyclic number.

It is not a de Polignac number, because 4249647797 - 2¹² = 4249643701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4249617797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2124823898 + 2124823899.

It is an arithmetic number, because the mean of its divisors is an integer number (2124823899).

Almost surely, 2^4249647797 is an apocalyptic number.

It is an amenable number.

4249647797 is a deficient number, since it is larger than the sum of its proper divisors (1).

4249647797 is an equidigital number, since it uses as much as digits as its factorization.

4249647797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21337344, while the sum is 59.

The square root of 4249647797 is about 65189.3227223600. The cubic root of 4249647797 is about 1619.7611542656.

The spelling of 4249647797 in words is "four billion, two hundred forty-nine million, six hundred forty-seven thousand, seven hundred ninety-seven".