61280697 has 8 divisors (see below), whose sum is σ = 81749056. Its totient is φ = 40833072.

The previous prime is 61280689. The next prime is 61280701. The reversal of 61280697 is 79608216.

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

It is not a de Polignac number, because 61280697 - 2³ = 61280689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61280617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4083 + ... + 11799.

It is an arithmetic number, because the mean of its divisors is an integer number (10218632).

Almost surely, 2^61280697 is an apocalyptic number.

It is an amenable number.

61280697 is a deficient number, since it is larger than the sum of its proper divisors (20468359).

61280697 is a wasteful number, since it uses less digits than its factorization.

61280697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 61280697 is about 7828.1988349811. The cubic root of 61280697 is about 394.2525994070.

The spelling of 61280697 in words is "sixty-one million, two hundred eighty thousand, six hundred ninety-seven".