67402986 has 16 divisors (see below), whose sum is σ = 154064064. Its totient is φ = 19257984.

The previous prime is 67402921. The next prime is 67402997. The reversal of 67402986 is 68920476.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1604833 = 67402986 / (6 + 7 + 4 + 0 + 2 + 9 + 8 + 6).

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, 802375 + ... + 802458.

It is an arithmetic number, because the mean of its divisors is an integer number (9629004).

Almost surely, 2^67402986 is an apocalyptic number.

67402986 is an abundant number, since it is smaller than the sum of its proper divisors (86661078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67402986 is a wasteful number, since it uses less digits than its factorization.

67402986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604845.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 67402986 is about 8209.9321556271. The cubic root of 67402986 is about 406.9674848810.

The spelling of 67402986 in words is "sixty-seven million, four hundred two thousand, nine hundred eighty-six".