61628834 has 8 divisors (see below), whose sum is σ = 92586780. Its totient is φ = 30766576.

The previous prime is 61628821. The next prime is 61628839. The reversal of 61628834 is 43882616.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59059225 + 2569609 = 7685^2 + 1603^2 .

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

It is a super-2 number, since 2×61628834² = 7596226360399112, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61628839) 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, 22289 + ... + 24900.

Almost surely, 2^61628834 is an apocalyptic number.

61628834 is a deficient number, since it is larger than the sum of its proper divisors (30957946).

61628834 is a wasteful number, since it uses less digits than its factorization.

61628834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47844.

The product of its digits is 55296, while the sum is 38.

The square root of 61628834 is about 7850.4034291239. The cubic root of 61628834 is about 394.9977759849.

The spelling of 61628834 in words is "sixty-one million, six hundred twenty-eight thousand, eight hundred thirty-four".