10077521 has 4 divisors (see below), whose sum is σ = 10134000. Its totient is φ = 10021044.

The previous prime is 10077517. The next prime is 10077533. The reversal of 10077521 is 12577001.

It is a happy number.

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: 12577001 = 1361 ⋅9241.

It is a cyclic number.

It is not a de Polignac number, because 10077521 - 2² = 10077517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10077541) 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 in 3 ways as a sum of consecutive naturals, for example, 27971 + ... + 28328.

It is an arithmetic number, because the mean of its divisors is an integer number (2533500).

Almost surely, 2^10077521 is an apocalyptic number.

It is an amenable number.

10077521 is a deficient number, since it is larger than the sum of its proper divisors (56479).

10077521 is an equidigital number, since it uses as much as digits as its factorization.

10077521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56478.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 10077521 is about 3174.5111434676. The cubic root of 10077521 is about 215.9987497070.

The spelling of 10077521 in words is "ten million, seventy-seven thousand, five hundred twenty-one".