61466869 has 2 divisors, whose sum is σ = 61466870. Its totient is φ = 61466868.

The previous prime is 61466851. The next prime is 61466891. The reversal of 61466869 is 96866416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 16402500 = 6713^2 + 4050^2 .

It is a cyclic number.

It is not a de Polignac number, because 61466869 - 2⁹ = 61466357 is a prime.

It is a super-2 number, since 2×61466869² = 7556351969326322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61466569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30733434 + 30733435.

It is an arithmetic number, because the mean of its divisors is an integer number (30733435).

Almost surely, 2^61466869 is an apocalyptic number.

It is an amenable number.

61466869 is a deficient number, since it is larger than the sum of its proper divisors (1).

61466869 is an equidigital number, since it uses as much as digits as its factorization.

61466869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The square root of 61466869 is about 7840.0809307047. The cubic root of 61466869 is about 394.6514449093.

The spelling of 61466869 in words is "sixty-one million, four hundred sixty-six thousand, eight hundred sixty-nine".