971377942 has 4 divisors (see below), whose sum is σ = 1457066916. Its totient is φ = 485688970.

The previous prime is 971377937. The next prime is 971377961. The reversal of 971377942 is 249773179.

971377942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249773179 = 7919 ⋅31541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242844484 + ... + 242844487.

It is an arithmetic number, because the mean of its divisors is an integer number (364266729).

Almost surely, 2^971377942 is an apocalyptic number.

971377942 is a deficient number, since it is larger than the sum of its proper divisors (485688974).

971377942 is a wasteful number, since it uses less digits than its factorization.

971377942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485688973.

The product of its digits is 666792, while the sum is 49.

The square root of 971377942 is about 31166.9366797573. The cubic root of 971377942 is about 990.3668137028.

The spelling of 971377942 in words is "nine hundred seventy-one million, three hundred seventy-seven thousand, nine hundred forty-two".