30872023 has 32 divisors (see below), whose sum is σ = 39989376. Its totient is φ = 23182848.

The previous prime is 30872021. The next prime is 30872033. The reversal of 30872023 is 32027803.

It is a happy number.

30872023 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 30872023 - 2¹ = 30872021 is a prime.

It is a super-2 number, since 2×30872023² = 1906163608225058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30872021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178365 + ... + 178537.

It is an arithmetic number, because the mean of its divisors is an integer number (1249668).

Almost surely, 2^30872023 is an apocalyptic number.

30872023 is a deficient number, since it is larger than the sum of its proper divisors (9117353).

30872023 is a wasteful number, since it uses less digits than its factorization.

30872023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 30872023 is about 5556.2598031410. The cubic root of 30872023 is about 313.7051846277.

Adding to 30872023 its reverse (32027803), we get a palindrome (62899826).

It can be divided in two parts, 3087 and 2023, that multiplied together give a square (6245001 = 2499²).

The spelling of 30872023 in words is "thirty million, eight hundred seventy-two thousand, twenty-three".