80315405 has 16 divisors (see below), whose sum is σ = 98755200. Its totient is φ = 62682048.

The previous prime is 80315399. The next prime is 80315407. The reversal of 80315405 is 50451308.

It is a cyclic number.

It is not a de Polignac number, because 80315405 - 2⁶ = 80315341 is a prime.

It is a super-3 number, since 3×80315405³ (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 (80315407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51974 + ... + 53496.

It is an arithmetic number, because the mean of its divisors is an integer number (6172200).

Almost surely, 2^80315405 is an apocalyptic number.

It is an amenable number.

80315405 is a deficient number, since it is larger than the sum of its proper divisors (18439795).

80315405 is a wasteful number, since it uses less digits than its factorization.

80315405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 80315405 is about 8961.8862411883. The cubic root of 80315405 is about 431.4524616799.

The spelling of 80315405 in words is "eighty million, three hundred fifteen thousand, four hundred five".