86457542 has 4 divisors (see below), whose sum is σ = 129686316. Its totient is φ = 43228770.

The previous prime is 86457541. The next prime is 86457551. The reversal of 86457542 is 24575468.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 86457542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86457541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21614384 + ... + 21614387.

It is an arithmetic number, because the mean of its divisors is an integer number (32421579).

Almost surely, 2^86457542 is an apocalyptic number.

86457542 is a deficient number, since it is larger than the sum of its proper divisors (43228774).

86457542 is a wasteful number, since it uses less digits than its factorization.

86457542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43228773.

The product of its digits is 268800, while the sum is 41.

The square root of 86457542 is about 9298.2547824847. The cubic root of 86457542 is about 442.1818999744.

The spelling of 86457542 in words is "eighty-six million, four hundred fifty-seven thousand, five hundred forty-two".