46490991 has 4 divisors (see below), whose sum is σ = 61987992. Its totient is φ = 30993992.

The previous prime is 46490989. The next prime is 46490993. The reversal of 46490991 is 19909464.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (46490989) and next prime (46490993).

It is a cyclic number.

It is not a de Polignac number, because 46490991 - 2¹ = 46490989 is a prime.

It is a super-2 number, since 2×46490991² = 4322824488324162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46490993) 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, 7748496 + ... + 7748501.

It is an arithmetic number, because the mean of its divisors is an integer number (15496998).

Almost surely, 2^46490991 is an apocalyptic number.

46490991 is a deficient number, since it is larger than the sum of its proper divisors (15497001).

46490991 is a wasteful number, since it uses less digits than its factorization.

46490991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15497000.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 46490991 is about 6818.4302445651. The cubic root of 46490991 is about 359.5750928161.

The spelling of 46490991 in words is "forty-six million, four hundred ninety thousand, nine hundred ninety-one".