8742546 has 32 divisors (see below), whose sum is σ = 20452800. Its totient is φ = 2760480.

The previous prime is 8742541. The next prime is 8742551. The reversal of 8742546 is 6452478.

It is an interprime number because it is at equal distance from previous prime (8742541) and next prime (8742551).

It is a super-2 number, since 2×8742546² = 152864221124232, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8742546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3235 + ... + 5286.

It is an arithmetic number, because the mean of its divisors is an integer number (639150).

Almost surely, 2^8742546 is an apocalyptic number.

8742546 is an abundant number, since it is smaller than the sum of its proper divisors (11710254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8742546 is a wasteful number, since it uses less digits than its factorization.

8742546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551 (or 8545 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 8742546 is about 2956.7796671379. The cubic root of 8742546 is about 206.0057339655.

The spelling of 8742546 in words is "eight million, seven hundred forty-two thousand, five hundred forty-six".