83744542 has 32 divisors (see below), whose sum is σ = 148236480. Its totient is φ = 34732800.

The previous prime is 83744539. The next prime is 83744543. The reversal of 83744542 is 24544738.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83744543) 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, 139042 + ... + 139642.

It is an arithmetic number, because the mean of its divisors is an integer number (4632390).

Almost surely, 2^83744542 is an apocalyptic number.

83744542 is a deficient number, since it is larger than the sum of its proper divisors (64491938).

83744542 is a wasteful number, since it uses less digits than its factorization.

83744542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916.

The product of its digits is 107520, while the sum is 37.

The square root of 83744542 is about 9151.2044016075. The cubic root of 83744542 is about 437.5075015857.

The spelling of 83744542 in words is "eighty-three million, seven hundred forty-four thousand, five hundred forty-two".