80478613 has 8 divisors (see below), whose sum is σ = 82759320. Its totient is φ = 78213120.

The previous prime is 80478611. The next prime is 80478653. The reversal of 80478613 is 31687408.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4318084 + 76160529 = 2078^2 + 8727^2 .

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 80478613 - 2¹ = 80478611 is a prime.

It is a super-3 number, since 3×80478613³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80478611) 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, 7381 + ... + 14677.

It is an arithmetic number, because the mean of its divisors is an integer number (10344915).

Almost surely, 2^80478613 is an apocalyptic number.

It is an amenable number.

80478613 is a deficient number, since it is larger than the sum of its proper divisors (2280707).

80478613 is a wasteful number, since it uses less digits than its factorization.

80478613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 80478613 is about 8970.9872923776. The cubic root of 80478613 is about 431.7445137864.

The spelling of 80478613 in words is "eighty million, four hundred seventy-eight thousand, six hundred thirteen".