61272808 has 8 divisors (see below), whose sum is σ = 114886530. Its totient is φ = 30636400.

The previous prime is 61272803. The next prime is 61272817. The reversal of 61272808 is 80827216.

It can be written as a sum of positive squares in only one way, i.e., 59629284 + 1643524 = 7722^2 + 1282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (61272803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3829543 + ... + 3829558.

Almost surely, 2^61272808 is an apocalyptic number.

It is an amenable number.

61272808 is a deficient number, since it is larger than the sum of its proper divisors (53613722).

61272808 is a wasteful number, since it uses less digits than its factorization.

61272808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7659107 (or 7659103 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 61272808 is about 7827.6949352923. The cubic root of 61272808 is about 394.2356805817.

The spelling of 61272808 in words is "sixty-one million, two hundred seventy-two thousand, eight hundred eight".