8742931 has 2 divisors, whose sum is σ = 8742932. Its totient is φ = 8742930.

The previous prime is 8742919. The next prime is 8742941. The reversal of 8742931 is 1392478.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8742931 - 2¹⁷ = 8611859 is a prime.

It is a super-2 number, since 2×8742931² = 152877684941522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8742941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4371465 + 4371466.

It is an arithmetic number, because the mean of its divisors is an integer number (4371466).

Almost surely, 2^8742931 is an apocalyptic number.

8742931 is the 1581-st centered heptagonal number.

8742931 is a deficient number, since it is larger than the sum of its proper divisors (1).

8742931 is an equidigital number, since it uses as much as digits as its factorization.

8742931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 8742931 is about 2956.8447710355. The cubic root of 8742931 is about 206.0087579146.

The spelling of 8742931 in words is "eight million, seven hundred forty-two thousand, nine hundred thirty-one".