61994267 has 2 divisors, whose sum is σ = 61994268. Its totient is φ = 61994266.

The previous prime is 61994249. The next prime is 61994293. The reversal of 61994267 is 76249916.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61994267 - 2²⁰ = 60945691 is a prime.

It is not a weakly prime, because it can be changed into another prime (61994227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30997133 + 30997134.

It is an arithmetic number, because the mean of its divisors is an integer number (30997134).

Almost surely, 2^61994267 is an apocalyptic number.

61994267 is a deficient number, since it is larger than the sum of its proper divisors (1).

61994267 is an equidigital number, since it uses as much as digits as its factorization.

61994267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 61994267 is about 7873.6438197318. The cubic root of 61994267 is about 395.7769613487.

The spelling of 61994267 in words is "sixty-one million, nine hundred ninety-four thousand, two hundred sixty-seven".