87022469 has 2 divisors, whose sum is σ = 87022470. Its totient is φ = 87022468.

The previous prime is 87022457. The next prime is 87022511. The reversal of 87022469 is 96422078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62884900 + 24137569 = 7930^2 + 4913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87022469 is a prime.

It is a super-2 number, since 2×87022469² = 15145820221711922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87021469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43511234 + 43511235.

It is an arithmetic number, because the mean of its divisors is an integer number (43511235).

Almost surely, 2^87022469 is an apocalyptic number.

It is an amenable number.

87022469 is a deficient number, since it is larger than the sum of its proper divisors (1).

87022469 is an equidigital number, since it uses as much as digits as its factorization.

87022469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 87022469 is about 9328.5834401585. The cubic root of 87022469 is about 443.1429049430.

The spelling of 87022469 in words is "eighty-seven million, twenty-two thousand, four hundred sixty-nine".