72703742 has 32 divisors (see below), whose sum is σ = 118589184. Its totient is φ = 33350400.

The previous prime is 72703733. The next prime is 72703751. The reversal of 72703742 is 24730727.

It is an interprime number because it is at equal distance from previous prime (72703733) and next prime (72703751).

It is a junction number, because it is equal to n+sod(n) for n = 72703699 and 72703708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93668 + ... + 94440.

It is an arithmetic number, because the mean of its divisors is an integer number (3705912).

Almost surely, 2^72703742 is an apocalyptic number.

72703742 is a deficient number, since it is larger than the sum of its proper divisors (45885442).

72703742 is a wasteful number, since it uses less digits than its factorization.

72703742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 72703742 is about 8526.6489314384. The cubic root of 72703742 is about 417.3677820055.

The spelling of 72703742 in words is "seventy-two million, seven hundred three thousand, seven hundred forty-two".