874281681 has 128 divisors (see below), whose sum is σ = 1692794880. Its totient is φ = 438799680.

The previous prime is 874281649. The next prime is 874281691. The reversal of 874281681 is 186182478.

874281681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 874281681 - 2⁵ = 874281649 is a prime.

It is a super-2 number, since 2×874281681² = 1528736915464371522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874281631) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4577296 + ... + 4577486.

It is an arithmetic number, because the mean of its divisors is an integer number (13224960).

Almost surely, 2^874281681 is an apocalyptic number.

874281681 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

874281681 is a deficient number, since it is larger than the sum of its proper divisors (818513199).

874281681 is a wasteful number, since it uses less digits than its factorization.

874281681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 237 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 874281681 is about 29568.2546153810. The cubic root of 874281681 is about 956.2037873861.

The spelling of 874281681 in words is "eight hundred seventy-four million, two hundred eighty-one thousand, six hundred eighty-one".