26968778 has 4 divisors (see below), whose sum is σ = 40453170. Its totient is φ = 13484388.

The previous prime is 26968769. The next prime is 26968787. The reversal of 26968778 is 87786962.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (26968769) and next prime (26968787).

It can be written as a sum of positive squares in only one way, i.e., 26759929 + 208849 = 5173^2 + 457^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6742193 + ... + 6742196.

Almost surely, 2^26968778 is an apocalyptic number.

26968778 is a deficient number, since it is larger than the sum of its proper divisors (13484392).

26968778 is a wasteful number, since it uses less digits than its factorization.

26968778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13484391.

The product of its digits is 2032128, while the sum is 53.

The square root of 26968778 is about 5193.1472153214. The cubic root of 26968778 is about 299.8843183612.

The spelling of 26968778 in words is "twenty-six million, nine hundred sixty-eight thousand, seven hundred seventy-eight".