2078377 has 4 divisors (see below), whose sum is σ = 2375296. Its totient is φ = 1781460.

The previous prime is 2078371. The next prime is 2078389. The reversal of 2078377 is 7738702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7738702 = 2 ⋅3869351.

It is a cyclic number.

It is not a de Polignac number, because 2078377 - 2¹⁵ = 2045609 is a prime.

It is an Ulam number.

2078377 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2078371) 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, 148449 + ... + 148462.

It is an arithmetic number, because the mean of its divisors is an integer number (593824).

2^2078377 is an apocalyptic number.

It is an amenable number.

2078377 is a deficient number, since it is larger than the sum of its proper divisors (296919).

2078377 is an equidigital number, since it uses as much as digits as its factorization.

2078377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296918.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 2078377 is about 1441.6577263692. The cubic root of 2078377 is about 127.6168760415.

The spelling of 2078377 in words is "two million, seventy-eight thousand, three hundred seventy-seven".