30873081 has 24 divisors (see below), whose sum is σ = 44988480. Its totient is φ = 18807264.

The previous prime is 30873079. The next prime is 30873109. The reversal of 30873081 is 18037803.

It is not a de Polignac number, because 30873081 - 2¹ = 30873079 is a prime.

It is a super-2 number, since 2×30873081² = 1906294260865122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30873181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30916 + ... + 31898.

It is an arithmetic number, because the mean of its divisors is an integer number (1874520).

Almost surely, 2^30873081 is an apocalyptic number.

It is an amenable number.

30873081 is a deficient number, since it is larger than the sum of its proper divisors (14115399).

30873081 is a wasteful number, since it uses less digits than its factorization.

30873081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 30873081 is about 5556.3550102563. The cubic root of 30873081 is about 313.7087681991.

The spelling of 30873081 in words is "thirty million, eight hundred seventy-three thousand, eighty-one".