78470419 has 8 divisors (see below), whose sum is σ = 83511648. Its totient is φ = 73476480.

The previous prime is 78470417. The next prime is 78470423. The reversal of 78470419 is 91407487.

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

It is a cyclic number.

It is not a de Polignac number, because 78470419 - 2¹ = 78470417 is a prime.

It is a super-2 number, since 2×78470419² = 12315213316071122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78470417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8367 + ... + 15064.

It is an arithmetic number, because the mean of its divisors is an integer number (10438956).

Almost surely, 2^78470419 is an apocalyptic number.

78470419 is a deficient number, since it is larger than the sum of its proper divisors (5041229).

78470419 is a wasteful number, since it uses less digits than its factorization.

78470419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23645.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 78470419 is about 8858.3530636343. The cubic root of 78470419 is about 428.1230957984.

The spelling of 78470419 in words is "seventy-eight million, four hundred seventy thousand, four hundred nineteen".