77530941 has 6 divisors (see below), whose sum is σ = 111989150. Its totient is φ = 51687288.

The previous prime is 77530889. The next prime is 77530961. The reversal of 77530941 is 14903577.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 77528025 + 2916 = 8805^2 + 54^2 .

It is not a de Polignac number, because 77530941 - 2⁷ = 77530813 is a prime.

It is a super-2 number, since 2×77530941² = 12022093624690962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77530896 and 77530905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77530961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4307266 + ... + 4307283.

Almost surely, 2^77530941 is an apocalyptic number.

It is an amenable number.

77530941 is a deficient number, since it is larger than the sum of its proper divisors (34458209).

77530941 is a wasteful number, since it uses less digits than its factorization.

77530941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614555 (or 8614552 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 77530941 is about 8805.1655861772. The cubic root of 77530941 is about 426.4076802159.

The spelling of 77530941 in words is "seventy-seven million, five hundred thirty thousand, nine hundred forty-one".