67340987 has 16 divisors (see below), whose sum is σ = 83082240. Its totient is φ = 53303712.

The previous prime is 67340953. The next prime is 67341013. The reversal of 67340987 is 78904376.

It is not a de Polignac number, because 67340987 - 2¹² = 67336891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67340947) 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, 2543 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (5192640).

Almost surely, 2^67340987 is an apocalyptic number.

67340987 is a deficient number, since it is larger than the sum of its proper divisors (15741253).

67340987 is a wasteful number, since it uses less digits than its factorization.

67340987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14482.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 67340987 is about 8206.1554335755. The cubic root of 67340987 is about 406.8426668832.

The spelling of 67340987 in words is "sixty-seven million, three hundred forty thousand, nine hundred eighty-seven".