1976978470 has 8 divisors (see below), whose sum is σ = 3558561264. Its totient is φ = 790791384.

The previous prime is 1976978461. The next prime is 1976978477. The reversal of 1976978470 is 748796791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1976978477) 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, 98848914 + ... + 98848933.

It is an arithmetic number, because the mean of its divisors is an integer number (444820158).

Almost surely, 2^1976978470 is an apocalyptic number.

1976978470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1976978470 is a deficient number, since it is larger than the sum of its proper divisors (1581582794).

1976978470 is a wasteful number, since it uses less digits than its factorization.

1976978470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197697854.

The product of its (nonzero) digits is 5334336, while the sum is 58.

The square root of 1976978470 is about 44463.2260413029. The cubic root of 1976978470 is about 1255.0681634697.

The spelling of 1976978470 in words is "one billion, nine hundred seventy-six million, nine hundred seventy-eight thousand, four hundred seventy".