46991761 has 6 divisors (see below), whose sum is σ = 47897990. Its totient is φ = 46102368.

The previous prime is 46991743. The next prime is 46991771. The reversal of 46991761 is 16719964.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 19492225 + 27499536 = 4415^2 + 5244^2 .

It is not a de Polignac number, because 46991761 - 2⁹ = 46991249 is a prime.

It is a super-2 number, since 2×46991761² = 4416451203762242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46991701) 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 5 ways as a sum of consecutive naturals, for example, 5556 + ... + 11173.

Almost surely, 2^46991761 is an apocalyptic number.

It is an amenable number.

46991761 is a deficient number, since it is larger than the sum of its proper divisors (906229).

46991761 is an equidigital number, since it uses as much as digits as its factorization.

46991761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16835 (or 16782 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 46991761 is about 6855.0536832325. The cubic root of 46991761 is about 360.8615194638.

The spelling of 46991761 in words is "forty-six million, nine hundred ninety-one thousand, seven hundred sixty-one".