1085724671 has 2 divisors, whose sum is σ = 1085724672. Its totient is φ = 1085724670.

The previous prime is 1085724643. The next prime is 1085724677. The reversal of 1085724671 is 1764275801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1085724671 - 2¹⁸ = 1085462527 is a prime.

It is a super-2 number, since 2×1085724671² = 2357596122436116482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085724677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542862335 + 542862336.

It is an arithmetic number, because the mean of its divisors is an integer number (542862336).

Almost surely, 2^1085724671 is an apocalyptic number.

1085724671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085724671 is an equidigital number, since it uses as much as digits as its factorization.

1085724671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 1085724671 is about 32950.3364322733. The cubic root of 1085724671 is about 1027.7951614229.

The spelling of 1085724671 in words is "one billion, eighty-five million, seven hundred twenty-four thousand, six hundred seventy-one".