61667323 has 2 divisors, whose sum is σ = 61667324. Its totient is φ = 61667322.

The previous prime is 61667317. The next prime is 61667341. The reversal of 61667323 is 32376616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61667323 - 2⁹ = 61666811 is a prime.

It is not a weakly prime, because it can be changed into another prime (61667303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30833661 + 30833662.

It is an arithmetic number, because the mean of its divisors is an integer number (30833662).

Almost surely, 2^61667323 is an apocalyptic number.

61667323 is a deficient number, since it is larger than the sum of its proper divisors (1).

61667323 is an equidigital number, since it uses as much as digits as its factorization.

61667323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 34.

The square root of 61667323 is about 7852.8544491796. The cubic root of 61667323 is about 395.0799880740.

The spelling of 61667323 in words is "sixty-one million, six hundred sixty-seven thousand, three hundred twenty-three".