26961431 has 8 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 23086008.

The previous prime is 26961427. The next prime is 26961449. The reversal of 26961431 is 13416962.

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

It is a cyclic number.

It is not a de Polignac number, because 26961431 - 2² = 26961427 is a prime.

It is a super-2 number, since 2×26961431² = 1453837523135522, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26961421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10760 + ... + 13026.

It is an arithmetic number, because the mean of its divisors is an integer number (3855600).

Almost surely, 2^26961431 is an apocalyptic number.

26961431 is a deficient number, since it is larger than the sum of its proper divisors (3883369).

26961431 is a wasteful number, since it uses less digits than its factorization.

26961431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973.

The product of its digits is 7776, while the sum is 32.

The square root of 26961431 is about 5192.4397926216. The cubic root of 26961431 is about 299.8570837792.

The spelling of 26961431 in words is "twenty-six million, nine hundred sixty-one thousand, four hundred thirty-one".