73878671 has 4 divisors (see below), whose sum is σ = 73907832. Its totient is φ = 73849512.

The previous prime is 73878659. The next prime is 73878683. The reversal of 73878671 is 17687837.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (73878659) and next prime (73878683).

It is a cyclic number.

It is not a de Polignac number, because 73878671 - 2¹⁰ = 73877647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73872671) 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, 10376 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (18476958).

Almost surely, 2^73878671 is an apocalyptic number.

73878671 is a deficient number, since it is larger than the sum of its proper divisors (29161).

73878671 is a wasteful number, since it uses less digits than its factorization.

73878671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29160.

The product of its digits is 395136, while the sum is 47.

The square root of 73878671 is about 8595.2702691655. The cubic root of 73878671 is about 419.6040694316.

The spelling of 73878671 in words is "seventy-three million, eight hundred seventy-eight thousand, six hundred seventy-one".