1772996397 has 8 divisors (see below), whose sum is σ = 2364193440. Its totient is φ = 1181898480.

The previous prime is 1772996387. The next prime is 1772996413. The reversal of 1772996397 is 7936992771.

It is a happy number.

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

It is not a de Polignac number, because 1772996397 - 2¹⁰ = 1772995373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1772996397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1772996387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45147 + ... + 74727.

It is an arithmetic number, because the mean of its divisors is an integer number (295524180).

Almost surely, 2^1772996397 is an apocalyptic number.

It is an amenable number.

1772996397 is a deficient number, since it is larger than the sum of its proper divisors (591197043).

1772996397 is a wasteful number, since it uses less digits than its factorization.

1772996397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49563.

The product of its digits is 9001692, while the sum is 60.

The square root of 1772996397 is about 42106.9637589793. The cubic root of 1772996397 is about 1210.3267102658.

The spelling of 1772996397 in words is "one billion, seven hundred seventy-two million, nine hundred ninety-six thousand, three hundred ninety-seven".