464988691 has 4 divisors (see below), whose sum is σ = 489461800. Its totient is φ = 440515584.

The previous prime is 464988679. The next prime is 464988701. The reversal of 464988691 is 196889464.

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

It is a cyclic number.

It is not a de Polignac number, because 464988691 - 2⁹ = 464988179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464988091) 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, 12236526 + ... + 12236563.

It is an arithmetic number, because the mean of its divisors is an integer number (122365450).

Almost surely, 2^464988691 is an apocalyptic number.

464988691 is a deficient number, since it is larger than the sum of its proper divisors (24473109).

464988691 is a wasteful number, since it uses less digits than its factorization.

464988691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24473108.

The product of its digits is 2985984, while the sum is 55.

The square root of 464988691 is about 21563.5964300949. The cubic root of 464988691 is about 774.7248088509.

The spelling of 464988691 in words is "four hundred sixty-four million, nine hundred eighty-eight thousand, six hundred ninety-one".