28417031 has 2 divisors, whose sum is σ = 28417032. Its totient is φ = 28417030.

The previous prime is 28417019. The next prime is 28417043. The reversal of 28417031 is 13071482.

It is a balanced prime because it is at equal distance from previous prime (28417019) and next prime (28417043).

It is a cyclic number.

It is not a de Polignac number, because 28417031 - 2⁶ = 28416967 is a prime.

It is a super-2 number, since 2×28417031² = 1615055301709922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28417091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14208515 + 14208516.

It is an arithmetic number, because the mean of its divisors is an integer number (14208516).

Almost surely, 2^28417031 is an apocalyptic number.

28417031 is a deficient number, since it is larger than the sum of its proper divisors (1).

28417031 is an equidigital number, since it uses as much as digits as its factorization.

28417031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 28417031 is about 5330.7627034037. The cubic root of 28417031 is about 305.1590355765.

The spelling of 28417031 in words is "twenty-eight million, four hundred seventeen thousand, thirty-one".