78266606 has 16 divisors (see below), whose sum is σ = 135606960. Its totient is φ = 33482880.

The previous prime is 78266597. The next prime is 78266611. The reversal of 78266606 is 60666287.

It is a super-2 number, since 2×78266606² = 12251323229518472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104261 + ... + 105008.

It is an arithmetic number, because the mean of its divisors is an integer number (8475435).

Almost surely, 2^78266606 is an apocalyptic number.

78266606 is a deficient number, since it is larger than the sum of its proper divisors (57340354).

78266606 is a wasteful number, since it uses less digits than its factorization.

78266606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209299.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 78266606 is about 8846.8415832997. The cubic root of 78266606 is about 427.7521164845.

The spelling of 78266606 in words is "seventy-eight million, two hundred sixty-six thousand, six hundred six".