78650949 has 8 divisors (see below), whose sum is σ = 112934752. Its totient is φ = 48400560.

The previous prime is 78650947. The next prime is 78650951. The reversal of 78650949 is 94905687.

It is an interprime number because it is at equal distance from previous prime (78650947) and next prime (78650951).

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

It is not a de Polignac number, because 78650949 - 2¹ = 78650947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78650898 and 78650907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78650941) 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 7 ways as a sum of consecutive naturals, for example, 1008307 + ... + 1008384.

It is an arithmetic number, because the mean of its divisors is an integer number (14116844).

Almost surely, 2^78650949 is an apocalyptic number.

It is an amenable number.

78650949 is a deficient number, since it is larger than the sum of its proper divisors (34283803).

78650949 is a wasteful number, since it uses less digits than its factorization.

78650949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016707.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 78650949 is about 8868.5370270412. The cubic root of 78650949 is about 428.4511594110.

The spelling of 78650949 in words is "seventy-eight million, six hundred fifty thousand, nine hundred forty-nine".