7275071477 has 4 divisors (see below), whose sum is σ = 7703016876. Its totient is φ = 6847126080.

The previous prime is 7275071423. The next prime is 7275071483. The reversal of 7275071477 is 7741705727.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7741705727 = 7 ⋅1105957961.

It can be written as a sum of positive squares in 2 ways, for example, as 5658951076 + 1616120401 = 75226^2 + 40201^2 .

It is a cyclic number.

It is not a de Polignac number, because 7275071477 - 2¹⁴ = 7275055093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7275071077) 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, 213972674 + ... + 213972707.

It is an arithmetic number, because the mean of its divisors is an integer number (1925754219).

Almost surely, 2^7275071477 is an apocalyptic number.

It is an amenable number.

7275071477 is a deficient number, since it is larger than the sum of its proper divisors (427945399).

7275071477 is a wasteful number, since it uses less digits than its factorization.

7275071477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427945398.

The product of its (nonzero) digits is 672280, while the sum is 47.

The square root of 7275071477 is about 85294.0295507253. The cubic root of 7275071477 is about 1937.6667557174. Note that the first 3 decimals are identical.

The spelling of 7275071477 in words is "seven billion, two hundred seventy-five million, seventy-one thousand, four hundred seventy-seven".