61813467 has 6 divisors (see below), whose sum is σ = 89286132. Its totient is φ = 41208972.

The previous prime is 61813457. The next prime is 61813481. The reversal of 61813467 is 76431816.

61813467 is a `hidden beast` number, since 618 + 1 + 34 + 6 + 7 = 666.

It is not a de Polignac number, because 61813467 - 2¹⁵ = 61780699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61813417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3434073 + ... + 3434090.

It is an arithmetic number, because the mean of its divisors is an integer number (14881022).

Almost surely, 2^61813467 is an apocalyptic number.

61813467 is a deficient number, since it is larger than the sum of its proper divisors (27472665).

61813467 is a wasteful number, since it uses less digits than its factorization.

61813467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6868169 (or 6868166 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 61813467 is about 7862.1540941398. The cubic root of 61813467 is about 395.3918389096.

The spelling of 61813467 in words is "sixty-one million, eight hundred thirteen thousand, four hundred sixty-seven".