26072978 has 8 divisors (see below), whose sum is σ = 41167920. Its totient is φ = 12350340.

The previous prime is 26072971. The next prime is 26072987. The reversal of 26072978 is 87927062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26072971) 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, 343028 + ... + 343103.

It is an arithmetic number, because the mean of its divisors is an integer number (5145990).

Almost surely, 2^26072978 is an apocalyptic number.

26072978 is a deficient number, since it is larger than the sum of its proper divisors (15094942).

26072978 is a wasteful number, since it uses less digits than its factorization.

26072978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686152.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 26072978 is about 5106.1705807777. The cubic root of 26072978 is about 296.5265236044.

The spelling of 26072978 in words is "twenty-six million, seventy-two thousand, nine hundred seventy-eight".