1973487772 has 12 divisors (see below), whose sum is σ = 3656756880. Its totient is φ = 928700096.

The previous prime is 1973487749. The next prime is 1973487773. The reversal of 1973487772 is 2777843791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973487773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14510872 + ... + 14511007.

It is an arithmetic number, because the mean of its divisors is an integer number (304729740).

Almost surely, 2^1973487772 is an apocalyptic number.

It is an amenable number.

1973487772 is a deficient number, since it is larger than the sum of its proper divisors (1683269108).

1973487772 is a wasteful number, since it uses less digits than its factorization.

1973487772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29021900 (or 29021898 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 55.

The square root of 1973487772 is about 44423.9549342469. The cubic root of 1973487772 is about 1254.3290481925.

It can be divided in two parts, 197348 and 7772, that added together give a triangular number (205120 = T₆₄₀).

The spelling of 1973487772 in words is "one billion, nine hundred seventy-three million, four hundred eighty-seven thousand, seven hundred seventy-two".