75377449 has 4 divisors (see below), whose sum is σ = 86145664. Its totient is φ = 64609236.

The previous prime is 75377413. The next prime is 75377459. The reversal of 75377449 is 94477357.

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.

It is a cyclic number.

It is not a de Polignac number, because 75377449 - 2⁷ = 75377321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75377399 and 75377408.

It is not an unprimeable number, because it can be changed into a prime (75377459) 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, 5384097 + ... + 5384110.

It is an arithmetic number, because the mean of its divisors is an integer number (21536416).

Almost surely, 2^75377449 is an apocalyptic number.

It is an amenable number.

75377449 is a deficient number, since it is larger than the sum of its proper divisors (10768215).

75377449 is a wasteful number, since it uses less digits than its factorization.

75377449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10768214.

The product of its digits is 740880, while the sum is 46.

The square root of 75377449 is about 8682.0187168653. The cubic root of 75377449 is about 422.4225998756.

The spelling of 75377449 in words is "seventy-five million, three hundred seventy-seven thousand, four hundred forty-nine".