46397819 has 4 divisors (see below), whose sum is σ = 49966896. Its totient is φ = 42828744.

The previous prime is 46397809. The next prime is 46397833. The reversal of 46397819 is 91879364.

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 46397819 - 2⁴ = 46397803 is a prime.

It is a super-4 number, since 4×46397819⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46397809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784519 + ... + 1784544.

It is an arithmetic number, because the mean of its divisors is an integer number (12491724).

Almost surely, 2^46397819 is an apocalyptic number.

46397819 is a deficient number, since it is larger than the sum of its proper divisors (3569077).

46397819 is a wasteful number, since it uses less digits than its factorization.

46397819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569076.

The product of its digits is 326592, while the sum is 47.

The square root of 46397819 is about 6811.5944535769. The cubic root of 46397819 is about 359.3347255585.

The spelling of 46397819 in words is "forty-six million, three hundred ninety-seven thousand, eight hundred nineteen".