78306741 has 12 divisors (see below), whose sum is σ = 115740768. Its totient is φ = 50990184.

The previous prime is 78306721. The next prime is 78306791. The reversal of 78306741 is 14760387.

It is not a de Polignac number, because 78306741 - 2⁹ = 78306229 is a prime.

It is a super-2 number, since 2×78306741² = 12263891372082162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78306696 and 78306705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78306721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100785 + ... + 101558.

It is an arithmetic number, because the mean of its divisors is an integer number (9645064).

Almost surely, 2^78306741 is an apocalyptic number.

It is an amenable number.

78306741 is a deficient number, since it is larger than the sum of its proper divisors (37434027).

78306741 is a wasteful number, since it uses less digits than its factorization.

78306741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202392 (or 202389 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 78306741 is about 8849.1096162269. The cubic root of 78306741 is about 427.8252208745.

The spelling of 78306741 in words is "seventy-eight million, three hundred six thousand, seven hundred forty-one".