61278467 has 8 divisors (see below), whose sum is σ = 62344800. Its totient is φ = 60217920.

The previous prime is 61278461. The next prime is 61278473. The reversal of 61278467 is 76487216.

It is an interprime number because it is at equal distance from previous prime (61278461) and next prime (61278473).

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 61278467 - 2¹⁰ = 61277443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61278461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23543 + ... + 26015.

It is an arithmetic number, because the mean of its divisors is an integer number (7793100).

Almost surely, 2^61278467 is an apocalyptic number.

61278467 is a deficient number, since it is larger than the sum of its proper divisors (1066333).

61278467 is a wasteful number, since it uses less digits than its factorization.

61278467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893.

The product of its digits is 112896, while the sum is 41.

The square root of 61278467 is about 7828.0563998990. The cubic root of 61278467 is about 394.2478170748.

The spelling of 61278467 in words is "sixty-one million, two hundred seventy-eight thousand, four hundred sixty-seven".