67399955 has 16 divisors (see below), whose sum is σ = 92574144. Its totient is φ = 46147200.

The previous prime is 67399939. The next prime is 67399961. The reversal of 67399955 is 55999376.

It is not a de Polignac number, because 67399955 - 2⁴ = 67399939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67399897 and 67399906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34505 + ... + 36405.

It is an arithmetic number, because the mean of its divisors is an integer number (5785884).

Almost surely, 2^67399955 is an apocalyptic number.

67399955 is a deficient number, since it is larger than the sum of its proper divisors (25174189).

67399955 is a wasteful number, since it uses less digits than its factorization.

67399955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926.

The product of its digits is 2296350, while the sum is 53.

The square root of 67399955 is about 8209.7475600654. The cubic root of 67399955 is about 406.9613845729.

The spelling of 67399955 in words is "sixty-seven million, three hundred ninety-nine thousand, nine hundred fifty-five".