67402849 has 4 divisors (see below), whose sum is σ = 67651840. Its totient is φ = 67153860.

The previous prime is 67402847. The next prime is 67402859. The reversal of 67402849 is 94820476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67402849 - 2¹ = 67402847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67402843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124089 + ... + 124630.

It is an arithmetic number, because the mean of its divisors is an integer number (16912960).

Almost surely, 2^67402849 is an apocalyptic number.

It is an amenable number.

67402849 is a deficient number, since it is larger than the sum of its proper divisors (248991).

67402849 is a wasteful number, since it uses less digits than its factorization.

67402849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248990.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 67402849 is about 8209.9238120704. The cubic root of 67402849 is about 406.9672091534.

The spelling of 67402849 in words is "sixty-seven million, four hundred two thousand, eight hundred forty-nine".