26720673 has 32 divisors (see below), whose sum is σ = 42172416. Its totient is φ = 14732928.

The previous prime is 26720671. The next prime is 26720677. The reversal of 26720673 is 37602762.

It is not a de Polignac number, because 26720673 - 2¹ = 26720671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26720671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114565 + ... + 114797.

It is an arithmetic number, because the mean of its divisors is an integer number (1317888).

Almost surely, 2^26720673 is an apocalyptic number.

It is an amenable number.

26720673 is a deficient number, since it is larger than the sum of its proper divisors (15451743).

26720673 is a wasteful number, since it uses less digits than its factorization.

26720673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 26720673 is about 5169.2042907976. The cubic root of 26720673 is about 298.9618673010.

The spelling of 26720673 in words is "twenty-six million, seven hundred twenty thousand, six hundred seventy-three".