76737641 has 4 divisors (see below), whose sum is σ = 76935300. Its totient is φ = 76539984.

The previous prime is 76737601. The next prime is 76737653. The reversal of 76737641 is 14673767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14673767 = 241 ⋅60887.

It can be written as a sum of positive squares in 2 ways, for example, as 15960025 + 60777616 = 3995^2 + 7796^2 .

It is a cyclic number.

It is not a de Polignac number, because 76737641 - 2¹⁴ = 76721257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76737601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98246 + ... + 99023.

It is an arithmetic number, because the mean of its divisors is an integer number (19233825).

Almost surely, 2^76737641 is an apocalyptic number.

It is an amenable number.

76737641 is a deficient number, since it is larger than the sum of its proper divisors (197659).

76737641 is a wasteful number, since it uses less digits than its factorization.

76737641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197658.

The product of its digits is 148176, while the sum is 41.

The square root of 76737641 is about 8760.0023401823. The cubic root of 76737641 is about 424.9483508169.

Subtracting from 76737641 its sum of digits (41), we obtain a square (76737600 = 8760²).

The spelling of 76737641 in words is "seventy-six million, seven hundred thirty-seven thousand, six hundred forty-one".