72370743 has 4 divisors (see below), whose sum is σ = 96494328. Its totient is φ = 48247160.

The previous prime is 72370733. The next prime is 72370769. The reversal of 72370743 is 34707327.

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

It is a cyclic number.

It is not a de Polignac number, because 72370743 - 2¹⁰ = 72369719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72370733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12061788 + ... + 12061793.

It is an arithmetic number, because the mean of its divisors is an integer number (24123582).

Almost surely, 2^72370743 is an apocalyptic number.

72370743 is a deficient number, since it is larger than the sum of its proper divisors (24123585).

72370743 is a wasteful number, since it uses less digits than its factorization.

72370743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24123584.

The product of its (nonzero) digits is 24696, while the sum is 33.

The square root of 72370743 is about 8507.0995644814. The cubic root of 72370743 is about 416.7295948334.

The spelling of 72370743 in words is "seventy-two million, three hundred seventy thousand, seven hundred forty-three".