46809621 has 6 divisors (see below), whose sum is σ = 67613910. Its totient is φ = 31206408.

The previous prime is 46809613. The next prime is 46809629. The reversal of 46809621 is 12690864.

It is an interprime number because it is at equal distance from previous prime (46809613) and next prime (46809629).

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 2852721 = 6630^2 + 1689^2 .

It is not a de Polignac number, because 46809621 - 2³ = 46809613 is a prime.

It is a super-2 number, since 2×46809621² = 4382281236327282, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46809629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2600526 + ... + 2600543.

It is an arithmetic number, because the mean of its divisors is an integer number (11268985).

Almost surely, 2^46809621 is an apocalyptic number.

It is an amenable number.

46809621 is a deficient number, since it is larger than the sum of its proper divisors (20804289).

46809621 is a wasteful number, since it uses less digits than its factorization.

46809621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201075 (or 5201072 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 46809621 is about 6841.7556957261. The cubic root of 46809621 is about 360.3946828755.

The spelling of 46809621 in words is "forty-six million, eight hundred nine thousand, six hundred twenty-one".