7872269 has 2 divisors, whose sum is σ = 7872270. Its totient is φ = 7872268.

The previous prime is 7872239. The next prime is 7872283. The reversal of 7872269 is 9622787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 1471369 = 2530^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 7872269 - 2⁸ = 7872013 is a prime.

It is a super-2 number, since 2×7872269² = 123945238416722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7⁴ + 8⁷ + 7⁸ + 2 + 2⁷ + 6⁵ + 9 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7872239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936134 + 3936135.

It is an arithmetic number, because the mean of its divisors is an integer number (3936135).

Almost surely, 2^7872269 is an apocalyptic number.

It is an amenable number.

7872269 is a deficient number, since it is larger than the sum of its proper divisors (1).

7872269 is an equidigital number, since it uses as much as digits as its factorization.

7872269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 7872269 is about 2805.7564042518. The cubic root of 7872269 is about 198.9298592061.

The spelling of 7872269 in words is "seven million, eight hundred seventy-two thousand, two hundred sixty-nine".