42764173 has 4 divisors (see below), whose sum is σ = 43279488. Its totient is φ = 42248860.

The previous prime is 42764171. The next prime is 42764209. The reversal of 42764173 is 37146724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42764173 - 2¹ = 42764171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42764171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257533 + ... + 257698.

It is an arithmetic number, because the mean of its divisors is an integer number (10819872).

Almost surely, 2^42764173 is an apocalyptic number.

It is an amenable number.

42764173 is a deficient number, since it is larger than the sum of its proper divisors (515315).

42764173 is an equidigital number, since it uses as much as digits as its factorization.

42764173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515314.

The product of its digits is 28224, while the sum is 34.

The square root of 42764173 is about 6539.4321618930. The cubic root of 42764173 is about 349.6981697167.

The spelling of 42764173 in words is "forty-two million, seven hundred sixty-four thousand, one hundred seventy-three".