87645343 has 2 divisors, whose sum is σ = 87645344. Its totient is φ = 87645342.

The previous prime is 87645323. The next prime is 87645359. The reversal of 87645343 is 34354678.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87645343 is a prime.

It is a super-2 number, since 2×87645343² = 15363412299175298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87645296 and 87645305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87645323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43822671 + 43822672.

It is an arithmetic number, because the mean of its divisors is an integer number (43822672).

Almost surely, 2^87645343 is an apocalyptic number.

87645343 is a deficient number, since it is larger than the sum of its proper divisors (1).

87645343 is an equidigital number, since it uses as much as digits as its factorization.

87645343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 87645343 is about 9361.9091535861. The cubic root of 87645343 is about 444.1976756207.

The spelling of 87645343 in words is "eighty-seven million, six hundred forty-five thousand, three hundred forty-three".