26778082 has 4 divisors (see below), whose sum is σ = 40167126. Its totient is φ = 13389040.

The previous prime is 26778067. The next prime is 26778083. The reversal of 26778082 is 28087762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28087762 = 2 ⋅14043881.

It can be written as a sum of positive squares in only one way, i.e., 24117921 + 2660161 = 4911^2 + 1631^2 .

It is not an unprimeable number, because it can be changed into a prime (26778083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6694519 + ... + 6694522.

Almost surely, 2^26778082 is an apocalyptic number.

26778082 is a deficient number, since it is larger than the sum of its proper divisors (13389044).

26778082 is a wasteful number, since it uses less digits than its factorization.

26778082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13389043.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 26778082 is about 5174.7542936839. The cubic root of 26778082 is about 299.1758193089.

The spelling of 26778082 in words is "twenty-six million, seven hundred seventy-eight thousand, eighty-two".