75801649 has 8 divisors (see below), whose sum is σ = 94506048. Its totient is φ = 59066160.

The previous prime is 75801631. The next prime is 75801673. The reversal of 75801649 is 94610857.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75801649 - 2¹⁷ = 75670577 is a prime.

It is a super-2 number, since 2×75801649² = 11491779982238402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75801149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492142 + ... + 492295.

It is an arithmetic number, because the mean of its divisors is an integer number (11813256).

Almost surely, 2^75801649 is an apocalyptic number.

It is an amenable number.

75801649 is a deficient number, since it is larger than the sum of its proper divisors (18704399).

75801649 is a wasteful number, since it uses less digits than its factorization.

75801649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984455.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 75801649 is about 8706.4142446819. The cubic root of 75801649 is about 423.2135374480.

It can be divided in two parts, 7580 and 1649, that added together give a palindrome (9229).

The spelling of 75801649 in words is "seventy-five million, eight hundred one thousand, six hundred forty-nine".