78747674 has 8 divisors (see below), whose sum is σ = 119616960. Its totient is φ = 38875356.

The previous prime is 78747671. The next prime is 78747677. The reversal of 78747674 is 47674787.

It is an interprime number because it is at equal distance from previous prime (78747671) and next prime (78747677).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (78747671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249044 + ... + 249359.

It is an arithmetic number, because the mean of its divisors is an integer number (14952120).

Almost surely, 2^78747674 is an apocalyptic number.

78747674 is a deficient number, since it is larger than the sum of its proper divisors (40869286).

78747674 is a wasteful number, since it uses less digits than its factorization.

78747674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498484.

The product of its digits is 1843968, while the sum is 50.

The square root of 78747674 is about 8873.9886184286. The cubic root of 78747674 is about 428.6267239870.

The spelling of 78747674 in words is "seventy-eight million, seven hundred forty-seven thousand, six hundred seventy-four".