71604026 has 8 divisors (see below), whose sum is σ = 115668084. Its totient is φ = 33048000.

The previous prime is 71604023. The next prime is 71604031. The reversal of 71604026 is 62040617.

It can be written as a sum of positive squares in 2 ways, for example, as 60078001 + 11526025 = 7751^2 + 3395^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 2754001 = 71604026 / (7 + 1 + 6 + 0 + 4 + 0 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 71603986 and 71604004.

It is not an unprimeable number, because it can be changed into a prime (71604023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376975 + ... + 1377026.

Almost surely, 2^71604026 is an apocalyptic number.

71604026 is a deficient number, since it is larger than the sum of its proper divisors (44064058).

71604026 is a wasteful number, since it uses less digits than its factorization.

71604026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754016.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 71604026 is about 8461.9162132463. The cubic root of 71604026 is about 415.2527149023.

The spelling of 71604026 in words is "seventy-one million, six hundred four thousand, twenty-six".