1072743623 has 24 divisors (see below), whose sum is σ = 1294631424. Its totient is φ = 885351600.

The previous prime is 1072743619. The next prime is 1072743631. The reversal of 1072743623 is 3263472701.

It is not a de Polignac number, because 1072743623 - 2² = 1072743619 is a prime.

It is a super-2 number, since 2×1072743623² = 2301557761374332258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072743643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318836 + ... + 322182.

It is an arithmetic number, because the mean of its divisors is an integer number (53942976).

Almost surely, 2^1072743623 is an apocalyptic number.

1072743623 is a deficient number, since it is larger than the sum of its proper divisors (221887801).

1072743623 is a wasteful number, since it uses less digits than its factorization.

1072743623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 1072743623 is about 32752.7651199101. The cubic root of 1072743623 is about 1023.6825820653.

The spelling of 1072743623 in words is "one billion, seventy-two million, seven hundred forty-three thousand, six hundred twenty-three".