77261061 has 8 divisors (see below), whose sum is σ = 104035104. Its totient is φ = 50997200.

The previous prime is 77261059. The next prime is 77261077. The reversal of 77261061 is 16016277.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 77261061 - 2¹ = 77261059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77261161) 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, 127191 + ... + 127796.

It is an arithmetic number, because the mean of its divisors is an integer number (13004388).

Almost surely, 2^77261061 is an apocalyptic number.

It is an amenable number.

77261061 is a deficient number, since it is larger than the sum of its proper divisors (26774043).

77261061 is a wasteful number, since it uses less digits than its factorization.

77261061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255091.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 77261061 is about 8789.8271314059. The cubic root of 77261061 is about 425.9123395198.

The spelling of 77261061 in words is "seventy-seven million, two hundred sixty-one thousand, sixty-one".