67278955 has 8 divisors (see below), whose sum is σ = 80782704. Its totient is φ = 53791200.

The previous prime is 67278907. The next prime is 67278973. The reversal of 67278955 is 55987276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67278955 - 2⁹ = 67278443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67278899 and 67278908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9265 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (10097838).

Almost surely, 2^67278955 is an apocalyptic number.

67278955 is a deficient number, since it is larger than the sum of its proper divisors (13503749).

67278955 is a wasteful number, since it uses less digits than its factorization.

67278955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997.

The product of its digits is 1058400, while the sum is 49.

The square root of 67278955 is about 8202.3749609488. The cubic root of 67278955 is about 406.7177057532.

The spelling of 67278955 in words is "sixty-seven million, two hundred seventy-eight thousand, nine hundred fifty-five".