73778041 has 4 divisors (see below), whose sum is σ = 73919632. Its totient is φ = 73636452.

The previous prime is 73778027. The next prime is 73778069. The reversal of 73778041 is 14087737.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14087737 = 1223 ⋅11519.

It is a cyclic number.

It is not a de Polignac number, because 73778041 - 2²³ = 65389433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73778071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70011 + ... + 71056.

It is an arithmetic number, because the mean of its divisors is an integer number (18479908).

Almost surely, 2^73778041 is an apocalyptic number.

It is an amenable number.

73778041 is a deficient number, since it is larger than the sum of its proper divisors (141591).

73778041 is a wasteful number, since it uses less digits than its factorization.

73778041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141590.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 73778041 is about 8589.4144736414. The cubic root of 73778041 is about 419.4134688930.

The spelling of 73778041 in words is "seventy-three million, seven hundred seventy-eight thousand, forty-one".