75671272 has 8 divisors (see below), whose sum is σ = 141883650. Its totient is φ = 37835632.

The previous prime is 75671263. The next prime is 75671273. The reversal of 75671272 is 27217657.

It can be written as a sum of positive squares in only one way, i.e., 75446596 + 224676 = 8686^2 + 474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×75671272² = 11452282812195968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75671273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4729447 + ... + 4729462.

Almost surely, 2^75671272 is an apocalyptic number.

It is an amenable number.

75671272 is a deficient number, since it is larger than the sum of its proper divisors (66212378).

75671272 is a wasteful number, since it uses less digits than its factorization.

75671272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9458915 (or 9458911 counting only the distinct ones).

The product of its digits is 41160, while the sum is 37.

The square root of 75671272 is about 8698.9236115740. The cubic root of 75671272 is about 422.9707591931.

The spelling of 75671272 in words is "seventy-five million, six hundred seventy-one thousand, two hundred seventy-two".