103076721 has 24 divisors (see below), whose sum is σ = 162923904. Its totient is φ = 62278560.

The previous prime is 103076713. The next prime is 103076737. The reversal of 103076721 is 127670301.

It is not a de Polignac number, because 103076721 - 2³ = 103076713 is a prime.

It is a super-2 number, since 2×103076721² = 21249620824223682, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (103076711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34915 + ... + 37751.

It is an arithmetic number, because the mean of its divisors is an integer number (6788496).

Almost surely, 2^103076721 is an apocalyptic number.

103076721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103076721 is a deficient number, since it is larger than the sum of its proper divisors (59847183).

103076721 is a wasteful number, since it uses less digits than its factorization.

103076721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 103076721 is about 10152.6706338776. The cubic root of 103076721 is about 468.8711720876.

The spelling of 103076721 in words is "one hundred three million, seventy-six thousand, seven hundred twenty-one".