67420379 has 16 divisors (see below), whose sum is σ = 77172480. Its totient is φ = 58384800.

The previous prime is 67420373. The next prime is 67420387. The reversal of 67420379 is 97302476.

It is a cyclic number.

It is not a de Polignac number, because 67420379 - 2¹⁶ = 67354843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67420373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25154 + ... + 27704.

It is an arithmetic number, because the mean of its divisors is an integer number (4823280).

Almost surely, 2^67420379 is an apocalyptic number.

67420379 is a deficient number, since it is larger than the sum of its proper divisors (9752101).

67420379 is a wasteful number, since it uses less digits than its factorization.

67420379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 67420379 is about 8210.9913530584. The cubic root of 67420379 is about 407.0024871716.

The spelling of 67420379 in words is "sixty-seven million, four hundred twenty thousand, three hundred seventy-nine".