61028806 has 4 divisors (see below), whose sum is σ = 91543212. Its totient is φ = 30514402.

The previous prime is 61028791. The next prime is 61028857. The reversal of 61028806 is 60882016.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15257200 + ... + 15257203.

It is an arithmetic number, because the mean of its divisors is an integer number (22885803).

Almost surely, 2^61028806 is an apocalyptic number.

61028806 is a deficient number, since it is larger than the sum of its proper divisors (30514406).

61028806 is a wasteful number, since it uses less digits than its factorization.

61028806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30514405.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 61028806 is about 7812.0935734283. The cubic root of 61028806 is about 393.7116728966.

The spelling of 61028806 in words is "sixty-one million, twenty-eight thousand, eight hundred six".