46528021 has 4 divisors (see below), whose sum is σ = 47610112. Its totient is φ = 45445932.

The previous prime is 46528019. The next prime is 46528039. The reversal of 46528021 is 12082564.

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 46528021 - 2¹ = 46528019 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 (46528091) 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, 540981 + ... + 541066.

It is an arithmetic number, because the mean of its divisors is an integer number (11902528).

Almost surely, 2^46528021 is an apocalyptic number.

It is an amenable number.

46528021 is a deficient number, since it is larger than the sum of its proper divisors (1082091).

46528021 is a wasteful number, since it uses less digits than its factorization.

46528021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082090.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 46528021 is about 6821.1451384647. The cubic root of 46528021 is about 359.6705344764.

It can be divided in two parts, 4 and 6528021, that added together give a square (6528025 = 2555²).

The spelling of 46528021 in words is "forty-six million, five hundred twenty-eight thousand, twenty-one".