78032471 has 8 divisors (see below), whose sum is σ = 87203088. Its totient is φ = 69208000.

The previous prime is 78032467. The next prime is 78032509. The reversal of 78032471 is 17423087.

It is a happy number.

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

It is not a de Polignac number, because 78032471 - 2² = 78032467 is a prime.

It is a super-3 number, since 3×78032471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78032671) 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, 86060 + ... + 86961.

It is an arithmetic number, because the mean of its divisors is an integer number (10900386).

Almost surely, 2^78032471 is an apocalyptic number.

78032471 is a deficient number, since it is larger than the sum of its proper divisors (9170617).

78032471 is a wasteful number, since it uses less digits than its factorization.

78032471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173073.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 78032471 is about 8833.5989834269. The cubic root of 78032471 is about 427.3251494743.

The spelling of 78032471 in words is "seventy-eight million, thirty-two thousand, four hundred seventy-one".