802244557 has 2 divisors, whose sum is σ = 802244558. Its totient is φ = 802244556.

The previous prime is 802244473. The next prime is 802244579. The reversal of 802244557 is 755442208.

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., 467683876 + 334560681 = 21626^2 + 18291^2 .

It is a cyclic number.

It is not a de Polignac number, because 802244557 - 2²³ = 793855949 is a prime.

It is a super-2 number, since 2×802244557² = 1287192658472252498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802244587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401122278 + 401122279.

It is an arithmetic number, because the mean of its divisors is an integer number (401122279).

Almost surely, 2^802244557 is an apocalyptic number.

It is an amenable number.

802244557 is a deficient number, since it is larger than the sum of its proper divisors (1).

802244557 is an equidigital number, since it uses as much as digits as its factorization.

802244557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 802244557 is about 28323.9219918429. The cubic root of 802244557 is about 929.1851485832.

The spelling of 802244557 in words is "eight hundred two million, two hundred forty-four thousand, five hundred fifty-seven".