46778397 has 16 divisors (see below), whose sum is σ = 64565952. Its totient is φ = 30101760.

The previous prime is 46778393. The next prime is 46778419. The reversal of 46778397 is 79387764.

It is not a de Polignac number, because 46778397 - 2² = 46778393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46778393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12933 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (4035372).

Almost surely, 2^46778397 is an apocalyptic number.

It is an amenable number.

46778397 is a deficient number, since it is larger than the sum of its proper divisors (17787555).

46778397 is a wasteful number, since it uses less digits than its factorization.

46778397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388.

The product of its digits is 1778112, while the sum is 51.

The square root of 46778397 is about 6839.4734446447. The cubic root of 46778397 is about 360.3145322118.

The spelling of 46778397 in words is "forty-six million, seven hundred seventy-eight thousand, three hundred ninety-seven".