67920573 has 16 divisors (see below), whose sum is σ = 108945920. Its totient is φ = 36768816.

The previous prime is 67920563. The next prime is 67920577. The reversal of 67920573 is 37502976.

It is not a de Polignac number, because 67920573 - 2⁴ = 67920557 is a prime.

It is a super-2 number, since 2×67920573² = 9226408473296658, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67920577) 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, 84715 + ... + 85512.

It is an arithmetic number, because the mean of its divisors is an integer number (6809120).

Almost surely, 2^67920573 is an apocalyptic number.

It is an amenable number.

67920573 is a deficient number, since it is larger than the sum of its proper divisors (41025347).

67920573 is a wasteful number, since it uses less digits than its factorization.

67920573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170256.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 67920573 is about 8241.3938748248. The cubic root of 67920573 is about 408.0065298359.

The spelling of 67920573 in words is "sixty-seven million, nine hundred twenty thousand, five hundred seventy-three".